Details, datasheet, quote on part number: TDA8040
PartTDA8040
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Description
CompanyN.A.
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Features, Applications

Preliminary specification File under Integrated Circuits, IC03 November 1994

FEATURES Generates all control signals for Quadrature Phase-Shift Keying (QPSK) and Binary Phase-Shift Keying (BPSK) demodulation Can be used in applications with low Eb/No and high symbol rate (up 106 symbols/s) Digital I and Q outputs (3 bits) for soft decision within error correction Two matched analog-to-digital converters to quantize the I and Q signals A digital detector for each control loop to generate the required control signals Digital-to-analog converters and operational amplifiers to allow high flexibility for loop time constants Special input stage to interface with the voltage controlled crystal oscillator Positive 5 V supply voltage. QUICK REFERENCE DATA SYMBOL VDD(A) VDDA(C) VDD(I/O) VDDD VDD(C) IDD(tot) VIQ Rsym IO(DAC) PARAMETER supply voltage for operational amplifiers (pin 5) analog supply voltage for converters (pin 20) supply voltage for digital inputs/outputs (pin 30) supply voltage for digital section (pin 35) supply voltage for digital part of ADC and DAC (pin 42) total supply current I and Q input voltage symbol rate DAC output current VDD 5 V CONDITIONS MIN. TYP. APPLICATIONS

Demodulation of BPSK and QPSK modulated signals in satellite and telephone applications.

ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA8041H Note 1. When using reflow soldering it is recommended that the Drypack instructions in the "Quality Reference Handbook" (order number 510 63011) are followed. QFP44(1) DESCRIPTION plastic quad flat package; 44 leads (lead length 1.3 mm); body mm; high stand-off height VERSION SOT307-2

3 I LCK DAC LCKIO LCKTH CARTC CARO 15 4 DAC CLK1 Vref(mid) th AFC2 DAC CLK1 12 AGC CLK1 I CLK DAC CLK1 ADC DAC OPAMP 2 25 CLKSR data AGC DAC 2 I AGC 13 AGCTC AGCO Vref(mid) data 14 10 SWPO AFC2O SWEEP 16 I CAR CARRIER data CAR RECOVERY Vref(mid)

LCKDAC LCKTC LCKO 4 LOGIC I (3..0) data LCK LOCK DETECTOR 4

V SS(A) V SSA(C) SS1 V DD(I/O) V DDD V SS(C) V DD(A) SS2 V DDA(C) V SS(I/O) V SSD V DD(C)

 

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