Sharp DX-SX1H, Service Manual

Page: 45 / 76

DX-SX1H
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IC303 VHiPCM1716E-1: CD D/A Converter (PCM1716E)
Figure 45 BLOCK DIAGRAM OF IC
1 LRCK Input LRCK clock input (fs)
2 DATA Input Data input
3 BCK Input Data bit clock input
4* CLKO Output System clock, buffered output
5 XTI Input Connection of crystal transmitter or external clock input
6* XTO Output Connection of crystal transmitter
7 DGND — Digital GND
8 VDD — Digital power supply, +5V
9 VCC2R — Analog power supply, +5V
10 AGND2R — Analog GND
11 EXTR Output Rch, analog output amplifier common
12 NC — Not used
13 VOUTR Output Rch, analog voltage output
14 AGND1 — Analog GND
15 VCC1 — Analog power supply, +5V
16 VOUTL Output Lch, analog voltage output
17 NC — Not used
18 EXTL Output Lch, analog output amplifier common
19 AGND2L — Analog GND
20 VCC2L — Analog power supply, +5V
21* ZERO Output Zero data flag
22 RST Input Reset. While this pin is in "L", DF and delta-sigma modulator are in the reset condition.
23 CS/IWO Input Chip select/input format select
24 MODE Input Mode control select (H: software, L: hardware)
25 MUTE Input Mute control
26 MD/DM0 Input Mode control data/de-emphasis select 1
27 MC/DM1 Input Mode control BCK/de-emphasis select 2
28 ML/IIS Input Mode control latch/input format select
Pin No. Terminal Name Input/Output Function
BCK
LRCK
DATA
ML/IIS
MC/DM1
MD/DM0
CS/IWO
MODE
MUTE
RST
XTI XTO CLKO
VCC AGND DGND VDD
BPZ-Cont.
Crystal OSC
DAC
DAC
OPEN DRAIN
VOUTL
VCC2L AGND2L VCC2R AGND2R
EXTL
EXTR
VOUTR
ZERO
SERIAL
INPUT
I/F
MODE
CONTROL I/F
8-TIME
OVERSAMPLING
DIGITAL FILTER
WITH FUNVTION
CONTROLLER
POWER
MULTI-LEVEL
DELTA/SIGMA
MODULATOR
LOW-PASS
FILTER
LOW-PASS
FILTER