PMB2401S Siemens Semiconductor Group, PMB2401S Datasheet
PMB2401S
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PMB2401S Summary of contents
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GSM Receiver Circuit Preliminary Data Features Heterodyne receiver with demodulator Down mixing from 900 MHz receiver band to the base band Demodulation and generation of I/Q-baseband components Low mixer noise 10 dB (SSB) Input high intercept point + 2 dB ...
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Functional Description The PMB 2401 is a single-chip single-conversion heterodyn PM-receiver with phase shifting circuitry for the I/Q-phase baseband demodulation on chip. It also includes the second local oscillator, a gain controlled second IF-amplifier, two differential operational amplifiers for baseband ...
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Pin Definitions and Functions Pin No. Symbol 1 SOI 2 SOQ 3 INQ 4 OUTQ 5 OUTQ 6 INQ 7 SOQ 8 LO2E 9 LO2B 10 GND 11 IFI 12 IFI LO2O ...
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Block Diagram Semiconductor Group 4 PMB 2401 ...
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Circuit Description The input signal SI/SI and the amplified first local oscillator signal LO1/LO1 are mixed down to an intermediate frequency (IF). The open collector output of the mixer generates a differential current at pins MO/MO which is filtered by ...
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Internal Input / Output Circuits Semiconductor Group 6 PMB 2401 ...
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Electrical Characteristics Absolute Maximum Ratings The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result – 25 ˚ ˚C A Parameter Supply voltage ...
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Operational Range Within the operational range the IC operates as described in the circuit description. The AC/DC- characteristics limits are not guaranteed 4 5 – 25 ˚ ˚C; refer to test ...
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AC/DC Characteristics AC/DC-characteristics involve the spread of values guaranteed within the specified supply voltage and ambient temperature range. Typical characteristics are the median of the production 4. ˚ Parameter ...
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AC/DC Characteristics (cont’d) Parameter Symbol Input of First Mixer Local Oscillator LO1/LO1 R Input resistance LO1 Input capacitance C LO1 P Input level LO1 V LO1 f Input frequency LO1 Isolation of First Mixer A From ...
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AC/DC Characteristics (cont’d) Parameter Symbol Input capacitance C LO2 P Input level LO2 V LO2 Input frequency f LO2 Voltage Controlled Oscillator VCO (LO2) f VCO-frequency VCO VCO Output LO2O R Output resistance LO2O Output capacitance C LO2O V Output ...
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AC/DC Characteristics (cont’d) Parameter Symbol Power-Down Inputs PD1, PD2 V L-PD input voltage PDL L-PD input current I PD1L I PD2L V H-PD input voltage PDH I H-PD input current PDH Differential Operational Amplifier (open loop) Slew rate SR Gain ...
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Test Circuit 1 Semiconductor Group *1) Balun 1:2 “NEOSID” 00553110 *2) Balun 1:1 “NEOSID” 00553100 *3) Transformer Kit “Vogt”1 5171100002 Cul 0.008 *4) Tuned for resonance 13 PMB 2401 ...
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Test Circuit 1.1 Test Circuit 1.2 Semiconductor Group 14 PMB 2401 ...
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Test Circuit 2a Test Circuit 2b Test Circuit 2c Semiconductor Group 15 PMB 2401 ...
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The S-parameters are tested at the indicated frequency and the equivalent parallel or series circuit is calculated on this base. Test Point LO1-input impedance SI-input impedance IFI-input impedance LO2-input impedance MO-output impedance Semiconductor Group Test Circuit Test Frequency / MHz ...
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Test Circuit wanted input signal from received channel unwanted interfering signal within band : int f = local oscillator signal wanted IF signal from received channel = IFW f = unwanted ...
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Application Circuit Semiconductor Group 18 PMB 2401 ...
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Diagram 1 First Mixer Gain versus LO-Level P = – 40 dBm MHz SI MO Diagram 3 Gain Control Characteristic Voltage Gain G versus GC-Voltage Semiconductor Group Diagram 2 P Gain Control Characteristic Output ...
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Diagram 5 Gain–Control Characteristic Input Intercept Point P versus GC-Voltage IPI Semiconductor Group Diagram 6 Frequency Transfer Characteristic of V Outputs SOI / SOQ GC 20 PMB 2401 ...
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Diagram 7 Worst-Case Signal Levels without Blocking Level Semiconductor Group 21 PMB 2401 ...
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Diagram 8 Worst-Case Signal Levels with Blocking Level Semiconductor Group 22 PMB 2401 ...
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Package Outlines Plastic-Package, P-DSO-28 (SMD) (Dual-Small-Outlines) Plastic-Package, P-DSO-28-4 (Shrink) (SMD) (Dual-Small-Outlines) Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package Information” SMD = Surface Mounted Device Semiconductor Group Dimensions ...