E-TDA7512 STMicroelectronics, E-TDA7512 Datasheet
E-TDA7512
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E-TDA7512 Summary of contents
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... IF counter for AM and FM with search stop signal ■ Quality detector for level, deviation, adjacent channel and multi path Table 1. Device summary Order code E-TDA7512 June 2009 ■ Quality detection informations as analog signals external available ■ ISS (intelligent selectivity system) for cancellation of adjacent channel and noise influences ■ ...
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... Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 Electrical characteristics (with f 3.5 Electrical characteristics (additional parameters Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1 FM section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1.1 4.1.2 4.1.3 4.1.4 4.2 AM section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.3 PLL and IF counter section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4 ...
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... TDA7512 4.4.3 4.4.4 4.4.5 4.4.6 4.4.7 4.4.8 5 Software specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.1 Address organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.2 Control register function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.3 Data byte specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Appendix A Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Appendix B Application notes Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 ...
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... Addr 23 test control Table 34. Addr 24 Test Control Table 35. Addr 25 test control Table 36. Block diagram quality detection principle (without overdeviation correction Table 37. Input signals modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Table 38. Part list (application and measurement circuit Table 39. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4/ different conditions MOD Doc ID 9300 Rev 4 TDA7512 ...
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... TDA7512 List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. Pin connection (top view Figure 3. Software specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 4. LQFP64 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Figure 5. Block diagram I/Q mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Figure 6. Block diagram VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Figure 7. Block diagram keying AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Figure 8. Block diagram ISS function Figure 9. ...
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... Block diagram 1 Block diagram Figure 1. Block diagram 6/49 Doc ID 9300 Rev 4 TDA7512 ...
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... FSU ISSTC Input2 Mixer1 AM Input1 Mixer1 Input AM RF AGC AM PIN diode driver output FM PIN diode driver output FM input1 mixer1 RF ground FM input2 mixer1 FM AGC time constant Tuning voltage preselection1 Tuning voltage preselection2 Ident. adjacent channel output Unweighted Fieldstrength output Doc ID 9300 Rev 4 ...
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... C bus clock Supply tuning voltage Op. amp. output to PLL loop filters Voltage reference for PLL op. amp. Op. amp. input to PLL loop filters AM Op. amp. input to PLL loop filters FM High current PLL loop filter input Digital ground AM stereo out / ident. multipath output Weighted Fieldstrength output ...
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... FM IF1 amplifier2 input FM IF1 amplifier reference FM IF1 amplifier1 output AM tank 450 kHz AM tank 450 kHz FM IF1 amplifier1 Input AM IF1 input/ISS filter status FM IF1 ground FM IF1 AGC input IF1 supply AM RF AGC Time constant MIX tank 10.7 MHz MIX tank 10.7 MHz ...
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... Supply voltage S T Ambient temperature amb T Storage temperature stg 3.2 Thermal data Table 4. Thermal data Symbol R Thermal resistance junction to ambient th(j-amb) 3.3 Electrical characteristics T = +25 °C, V amb dev kHz, f MOD application circuit, unless otherwise specified. Table 5. Electrical characteristics Symbol Parameter Supply ...
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... Reference voltages V Internal reference voltage REF1 V Internal reference voltage REF2 Wide band RF AGC V Lower threshold start 7-9 V Upper threshold start 7-9 Narrow band IF & Keying AGC V Lower threshold start 60 V Upper threshold start 60 V Lower threshold start with KAGC 60 V Startpoint KAGC 35 D ...
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... IIP3 3 order intermodulation IQG I/Q gain adjust IQP I/Q phase adjust IRR Image rejection ratio IRR Image rejection ratio IF1 Amplifier1 +2 (10.7 MHz) G Min. gain min G Max. gain max R Input resistance IN R Output resistance OUT compression point ...
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... V Output voltage high 34 R Output resistance OUT Test condition RMS RMS SMSL = 0 SMSL = 1 SL, SMSL RMS RMS - ACG=0 ACG=1 ACF=0 ACF MPG=0 MPG=1 MPF=0 MPF Doc ID 9300 Rev 4 Electrical specifications Min. Typ. Max. Unit - Ω - 200 - - 0 - ppm kΩ - ...
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... Symbol Parameter ISS (intelligent Selectivity System) Filter 450 kHz f Centre frequency centre Bandwidth Bandwidth, - Bandwidth Bandwidth, - Bandwidth weather band -20 dB weather band Adjacent channel ISS filter threshold V Internal low threshold NTH V Internal high threshold NTH V Internal low threshold WTH V Internal high threshold ...
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... Referred to threshold x Softmute V Upper startpoint ANT V lower startpoint ANT a Min. softmute depth SMmin a Max. softmute depth SMmax Mute depth threshold for ISS filter a SMTHISS on V Internal AC mute threshold ACTH a AC mute depth SMAC I Charge current 42 I Discharge current 42 S/N over all ...
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... Electrical specifications 3.4 Electrical characteristics (with f conditions +25 °C, V amb f = 400 MOD application circuit, (unless otherwise noted, V Table 6. Electrical characteristics (with f Symbol Parameter Global V ANT Max. sensitivity min V us Usable sensitivity ANT Δ V IF2 AGC Range ANT (S+N)/N Signal to Noise Ratio a IF rejection ...
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... Gain control range C Min. cap step min C Max. cap max C 55-56 3.5 Electrical characteristics (additional parameters) Table 7. Electrical characteristics (additional parameters) Symbol Parameter Output of tuning voltages (TV1,TV2) V Output voltage OUT R Output impedance OUT Crystal reference oscillator f Reference frequency LO C Min. cap step Step , f ...
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... VREF1 Tristate OUT I = -0.2 mA OUT I = 0.2 mA OUT OUT CC3 OUT CC3 - - Δ 200 MHz, f=1 kHz, VCO B=1 Hz, closed loop μ -200 0 Doc ID 9300 Rev 4 TDA7512 Min. Typ. Max. Unit - 23. 1.5 - ppm/V - 0.2 - ppm 400 kHz - - µ 0.4 V -0.1 - 0.1 µA -0 ...
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... Mixer2, limiter and demodulator In this 2. mixer stage the first 10.7 MHz IF is converted into the second 450 kHz IF. A multi- stage limiter generates signals for the complete integrated demodulator without external tank. MPX output DC offset versus noise DC level is correctable by software (DEM). ...
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... The device gets an additional second IF narrow bandpass filter for suppression of noise and adjacent channel signal influences. This narrow filter has three switchable bandwidths, narrow range of 80 kHz, mid range of 120 kHz and 30 kHz for weather band information. Without ISS filter the IF bandwidth (wide range) is defined only by ceramic filter chain. The filter is switched in after mixer2 before 450 kHz limiter stage ...
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... MHz ceramic filter by internal switch between mixer2 input and PIN 52. This feature increases 900 kHz attenuation. In mixer2 the IF1 is down converted into the IF2 450 kHz. After filtering by ceramic filter a 450 kHz amplifier is included with an additional gain control of IF2 below DAGC threshold. ...
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... IF counter block The aim of IF counter is to measure the intermediate frequency of the tuner for AM and FM mode. The input signal for FM and AM up conversion is the same 10.7 MHz IF level after limiter. AM 450 kHz signal is coming from narrow filtered IF2 before demodulation. A switch controlled by IF counter mode (IFCM) is chosing the input signal for IF counter ...
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... At the start the counter will be loaded with a defined value which is an equivalent to the divider value (t Sample If a correct frequency is applied to the IF counter frequency input at the end of the sampling time the main counter is changing its state from 0h to 1FFFFFh. This is detected by a control logic and an external search stop output is changing from LOW to HIGH ...
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... START and will not response to any command if this condition has not been met. 4.4.3 Stop condition A STOP condition is defined by a LOW to HIGH transition of the SDA while the SCL line stable HIGH level. This condition terminates the communication between the devices and forces the bus-interface of the device into the initial condition. ...
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... After each word receipt the TDA7512 will answer with an "acknowledge". 4.4.8 Read operation If the master sends a slave address word with the R/W bit set to "1", the TDA7512 will transit one 8-bit data word. This data word includes the following informations: bit0 ...
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... Software specification 5 Software specification The interface protocol comprises: ● start condition (S) ● chip address byte ● subaddress byte ● sequence of data (N bytes + Acknowledge) ● stop condition (P) Figure 3. Software specification 5.1 Address organization Table 8. Address organization Function Addr 7 CHARGE 0 LDENA PUMP 1 PC7 ...
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... Adjacent channel narrow band threshold Adjacent channel wide band threshold AM prescaler AM IF1 input select AM-FM switch Set short time constant of AGC in AM seek mode AM stereo select Application mode quality detection Charge pump low current ISS filter fixed bandwidth (ISS80) in automatic control ...
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... Set current high charge pump AM narrow band AGC threshold Demodulator offset Demodulator noise spike blanking Deviation detector threshold for ISS filter “OFF” Deviation detector threshold for ISS filter narrow/wide Frequency error window IF counter Corner frequency of AC-mute high pass filter I/Q mixer gain adjust ...
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... Test input adjacent channel mute (only for testing) Test input multipath (only for testing) Time constant for ISS filter “ON”/”OFF” Switch FSU PIN to Test output (only for testing) Tuning voltage offset for prestage Tuning voltage offset for prestage (weather band mode) ...
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... Software specification 5.3 Data byte specification Table 11. Addr 0 charge pump control MSB Table 12. Addr 1 PLL counter 1 (LSB) MSB 30/49 LSB High current = High current = 0 High current = High current = 1 High current = 7 Low current = 0 µ Low current = 50 µ Low current = 100 µ Low current = 150 µA ...
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... TDA7512 Table 13. Addr 2 PLL counter 2 (MSB) MSB Note: Swallow mode: f VCO Table 14. Addr 3,4 TV1,2 (offset referred to tuning voltage PIN28) MSB LSB MSB = MSB = 256 MSB = 512 - - - - MSB = 64768 MSB = 65024 MSB = 65280 MSB = 65536 /f = LSB + MSB + 32 SYN LSB Tuning Voltage Offset = 0 ...
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... Disable mute & AGC on hold in FM mode - - - Enable mute & AGC on hold in FM mode - - - Disable local mode - - - Enable local mode (PIN diode current = 0.5 mA) “ON” LSB 10.60625 MHz (FM) / 10.689 MHz; 449 kHz (AM) Center 10.61250 MHz (FM) / 10.690 MHz; 450 kHz (AM) ...
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... Switch “OFF” ISS filter 120 kHz Switch “ON” ISS filter 80 kHz - - - Switch “OFF” ISS filter 30 kHz for weatherband - - - Switch “ON” ISS filter 30 kHz for weatherband - - - Disable TV offset for weather band - - - Enable TV offset for weather band (+4V discharge current 1 ...
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... Multipath control “OFF” bandpass frequency 19 kHz - bandpass frequency 31 kHz gain gain threshold 0.50 V Doc ID 9300 Rev 4 TDA7512 Function μ μ A, charge current mid 70 A narrow120 μ A, charge current mid 68 µA narrow118 µA μ μ A, charge current mid 60 A narrow Function Function μ A ...
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... DEV threshold for ISS filter “OFF” ratio 1 DEV threshold for ISS filter “OFF” ratio 1 Disable ISS filter to fixed bandwidth (ISS80) in automatic - - - control Enable ISS filter to fixed bandwidth (ISS80) in automatic - - - control Doc ID 9300 Rev 4 Software specification Function Function , discharge current 6µA , discharge current 20 µ ...
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... LSB Startpoint mute 0 in application about Startpoint mute 1in application about Startpoint mute 7in application about Mute depth 0 in application Mute depth 1 in application Mute depth 2 in application Mute depth 3 in application (logarithmically behavior Mute depth 15 in application Mute disable ...
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... PLL reference frequency 50 kHz - - - PLL reference frequency 25 kHz - - - PLL reference frequency 10 kHz - - - PLL reference frequency 9 kHz - - - PLL reference frequency 2 kHz - - - Select FM mode - - - Select AM mode - - - Select PLL low pass filter Select PLL low pass filter AM LSB RFAGC threshold RFAGC threshold RFAGC threshold RFAGC threshold ...
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... DAGC V = 92(62 ANTTENNA) dB 58TH - - - DAGC V = 93(63 ANTTENNA) dB 58TH - - - DAGC V = 94(64 ANTENNA) dB 58TH - - - DAGC V = 96(66 ANTENNA) dB 58TH Doc ID 9300 Rev 4 TDA7512 Function μ μ 90(60 ANT) dB 58TH μ μ 94(64 ANT) dB 58TH μ μ 96.5(66.5 ANT) dB 58TH μ 98.5(68.5 ANT) dB 58TH μ ...
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... Spike cancellation ”OFF” Threshold for spike cancellation 270 Threshold for spike cancellation 520 Threshold for spike cancellation 750 mV LSB meter slider offset meter offset meter offset meter offset SL= meter offset - meter offset + Meter slope 1V/decade - - - S meter slope 1.5V/decade - ...
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... IF1 gain1 IF1 gain1 Load - - - C 0.75 pF Load - - - C 1.5 pF Load - - - C 2.25 pF Load - - - Load - - - - - - - C 23.25 pF Load LSB 450 kHz 450 kHz 1 450 kHz 3 450 kHz 4 450 kHz 10.7 MHz 10.7 MHz 0. 10.7 MHz 1 10.7 MHz 1. 10.7 MHz 8.25 pF Doc ID 9300 Rev 4 TDA7512 Function Function ...
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... Only for testing (have to be set to 0) LSB Only for testing (have to be set to 0) LSB Only for testing (have to be set to 0) LSB Only for testing (have to be set to 0) Doc ID 9300 Rev 4 Software specification Function μ A μ A Function Function ...
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... Package information 6 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK trademark. Figure 4. LQFP64 mechanical data and package dimensions DIM ...
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... TDA7512 Appendix A Block diagrams Figure 5. Block diagram I/Q mixer Figure 6. Block diagram VCO Doc ID 9300 Rev 4 Block diagrams 43/49 ...
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... Block diagrams Figure 7. Block diagram keying AGC Figure 8. Block diagram ISS function 44/49 5.7V Doc ID 9300 Rev 4 TDA7512 ...
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... TDA7512 Table 36. Block diagram quality detection principle (without overdeviation correction) Signal ac ac+ sm dev dev+ inton int80 Table 37. Input signals modes Input Signals ac ac Table 38. Part list (application and measurement circuit) Item LOW No adjacent channel No strong adjacent channel Fieldstrength higher as softmute threshold ...
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... TOKO FSLM 2520-150 15 µH TOKO FSLM 2520-680 68 µH SIEMENS SIMID03 B82432 1 mH TOKO LL 2012-220 TOKO LL 2012-270 TOKO LL 2012-22.0 muRata SFE10.7MS3A10-A 180 kHz or (TOKO CFSK107M3-AE-20X) muRata SFE10.7MJA10-A 150 kHz or (TOKO CFSK107M4-AE-20X) muRata SFPS 450H 6 kHz or (TOKO ARLFC450T) TOSHIBA 1SV172 TOKO KP2311E TOKO KV1370NT ...
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... PIN47. 6. With respect to THD capacitive coupling from PIN20 to VCO should be avoided. Capacitance at PIN20 has be connected versus VCC2 ground. 7. Wire length from AM mixer tank output to 9 kHz ceramic filter input has to be short as possible. Doc ID 9300 Rev 4 Application notes 47/49 ...
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... Date 24-Sep-2003 11-Dec-2008 22-Jun-2009 48/49 Revision 2 Initial release. Document reformatted. 3 Document status promoted from preliminary data to datasheet. Updated Section 6: Package information on page Corrected typo (ref: “K” Dim and package dimensions on page Doc ID 9300 Rev 4 TDA7512 Changes 42. Figure 4: LQFP64 mechanical data ...
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