SA604A Philips, SA604A Datasheet
SA604A
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SA604A Summary of contents
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... RF COMMUNICATIONS PRODUCTS SA604A High performance low power FM IF system Product specification Replaces data of December 15, 1994 IC17 Data Handbook Philips Semiconductors 1997 Nov 07 ...
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... Philips Semiconductors High performance low power FM IF system DESCRIPTION The SA604A is an improved monolithic low-power FM IF system incorporating two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator, and voltage regulator. The SA604A features higher IF bandwidth (25MHz) and temperature compensated RSSI and limiters permitting higher performance application compared with the SA604 ...
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... DC current drain CC Mute switch input threshold 1997 Nov GND IF AMP LIMITER SIGNAL STRENGTH VOLTAGE Figure 2. Block Diagram TEST CONDITIONS (ON) (OFF) 3 Product specification SA604A 10 9 LIMITER QUAD DET MUTE 7 8 SR00312 LIMITS SA604A UNITS MIN TYP MAX 4.5 8.0 V 2.5 3.3 4 1.7 1.0 V ...
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... SA604 data sheets refer to power at 50 input termination; about 21dB less power actually enters the internal 1.5k input. SA604 (50) -97dBm -47dBm +3dBm The SA605 and SA604A are both derived from the same basic die. The SA605 performance plots are directly applicable to the SA604A. 1997 Nov 07 IF frequency = 455kHz; IF level = -47dBm; FM modulation = 1kHz with TEST CONDITIONS MIN ...
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... SA604A AUDIO 12 C OUTPUT 11 RSSI MUTE V CC OUTPUT INPUT SIGNETICS NE604A TEST CKT Figure 3. SA604A Test Circuit 5 Product specification SA604A LOADED DATA OUTPUT SR00313 ...
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... GND 1997 Nov GND 700 7k 1.6k 40k 700 35k FULL WAVE RECT. VOLTAGE/ CURRENT CONVERTER MUTE V CC 55k Figure 4. Equivalent Circuit 6 Product specification SA604A 10 9 42k 4.5k QUAD DET 40k 40k 55k 80k 80k 7 8 SR00314 ...
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... Figure 3. This configuration can be used as the basis for production layout. The SA604A signal processing system suitable for IF frequencies as high as 21.4MHz. The device consists of two limiting amplifiers, quadrature detector, direct audio output, muted audio output, and signal strength indicator (with output characteristic) ...
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... Terminating High Impedance Filters with Transformation to Low Impedance BPF b. Low Impedance Termination and Gain Reduction 1997 Nov 07 SR00316 9 Figure 8. Feedback Paths V+ 40k 8 80k SR00317 HIGH IMPEDANCE BPF LOW IMPEDANCE BPF A RESISTIVE LOSS INTO BPF Figure 9. Practical Termination 8 Product specification SA604A BPF BPF SR00318 SR00319 ...
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... Examples of impedance/gain adjustment are shown in Figure 9. Reduced gain will result in reduced limiting sensitivity. A feature of the SA604A IF amplifiers, which is not specified, is low phase shift. The SA604A is fabricated with a 10GHz process with very small collector capacitance advantageous in some applications that the phase shift changes only a few degrees over a wide range of signal input amplitudes ...
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... DC level. This technique of audio bandwidth expansion can be effective in many applications such as SCA receivers and data transceivers. Because the two outputs have a 180 phase relationship, FSK demodulation can be accomplished by applying the two output 10 Product specification SA604A ( (6) ) ...
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... IF bandwidth (L/C filters) data rates in excess of 4Mbaud are possible. RSSI The “received signal strength indicator”, or RSSI, of the SA604A demonstrates monotonic logarithmic output over a range of 90dB. The signal strength output is derived from the summed stage currents in the limiting amplifiers essentially independent of the IF frequency ...
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... Philips Semiconductors High performance low power FM IF system SO16: plastic small outline package; 16 leads; body width 3.9 mm 1997 Nov 07 12 Product specification SA604A SOT109-1 ...
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... This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product. Copyright Philips Electronics North America Corporation 1997 All rights reserved. Printed in U.S.A. 13 Product specification SA604A ...