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IDT821034 Datasheet(PDF) 2 Page - Integrated Device Technology |
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IDT821034 Datasheet(HTML) 2 Page - Integrated Device Technology |
2 / 19 page 2 INDUSTRIAL TEMPERATURE RANGE IDT821034 QUAD PCM CODEC WITH PROGRAMMABLE GAIN PIN CONFIGURATIONS PIN DESCRIPTION Name Type Pin Number Description GNDA -- 46 51 52 40 41 Analog Ground. All ground pins should be connected to the ground plane of the circuit board. VDDA -- 47 45 +5 V Analog Power Supply. This pin should be bypassed to ground using 0.1µF capacitor. All power supply pins should be connected to the power plane of the circuit board. VFRO3 VFRO2 VFRO1 VFRO0 O 3 48 44 37 Voice Frequency Receiver Output. This is the output of receive power amplifier. It can drive 2000 Ω (or greater) load. GSX3 GSX2 GSX1 GSX0 O 2 49 43 38 Gain Setting Transmit Amplifier Output. This pin is the output of the gain setting amplifier, and the input to the differential transmit filter. It should be connected to the corresponding VFXI pin through a resistive network to set the transmit gain. Refer to Figure 5 for details. VFXI3 VFXI2 VFXI1 VFXI0 I 1 50 42 39 Voice Frequency Transmitter Input. This pin is the input to the gain setting amplifier in the transmit path. O3_4 O3_3 O3_2 O 9 10 11 SLIC Signaling Output for Channel 3. O2_4 O2_3 O2_2 O 4 5 6 SLIC Signaling Output for Channel 2. 52-Pin PQFP 26 25 24 23 22 21 20 19 18 17 16 15 14 I/O0_0 GND CS CI CO CCLK BCLK MCLK FS TSX DR VDD DX 40 41 42 43 44 45 46 47 48 49 50 51 52 GNDA GNDA VFXI1 GSX1 VFRO1 VDDA GNDA VDDA VFRO2 GSX2 VFXI2 GNDA GNDA |
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