Lsi Pin Description（Lsi 端子機能表 - Yamaha Audiogram 3 Service Manual

AUDIOGRAM3
LSI PIN DESCRIPTION（LSI 端子機能表）
PCM2904DBR (X9570A00) STEREO AUDIO CODEC WITH USB INTERFACE
PIN
NAME I/O
NO.
D +
1 I/O
USB differential input/output plus
2 D - I/O
USB differential input/output minus
3 V - Connect to USB power (V
BUS
4 DGNDU - Digital ground for USB transceiver
5 HID0 I HID key state input (mute), active high
6 HID1 I HID key state input (volume up), active high
7 HID2 I HID key state input (volume down), active high
8 SEL0 I
Must be set to high
9 SEL1 I
10 V -
CCCI Internal analog power supply for codec
11 AGNDC -
Analog ground for codec
12 V L I
IN ADC analog input for L-channnel
13 V R I
IN ADC analog input for R-channnel
14 V -
Common for ADC/DAC (V
COM
8
FUNCTION
)
BUS
/2)
CCCI
PIN
NAME I/O
NO.
15 V R O DAC analog output for R-channnel
OUT
16 V L O DAC analog output for L-channnel
OUT
17 V - Internal analog power supply for PLL
CCP1I
18 AGNDP - Analog ground for PLL
19 V - Internal analog power supply for PLL
CCP2I
20 O Crystal oscillator output
XTO
21 I Crystal oscillator input
XTI
22 - Analog ground for oscillator
AGNDX
- Internal analog power supply for oscillator
23 V
CCXI
I
24 TEST0 Test pin, must be connected to GND
25 TEST1 O Test pin, must be left open
26 DGND - Digital ground
27 V - Internal digital power supply
DDI
28 O Suspend flag, active low (Low: suspend,
SSPND
Hihg: operational)
PSUSB: IC102
FUNCTION