JVC KD-LX555R service manual 20 PCM1716E-X IC1571 D/A converter

4.20PCM1716E-X (IC1571) : D/A converter

• Pin layout

28 15

1 14

• Block diagram

					Vcc2L AGND2L	Vcc2R AGND2R
BCK	Serial							Low-pass
					DAC
LBCK	Input			Mult-level				Filter
DATA	I/F		8X Oversampling	Delta-Sigma
			Digital Filter	Modulator				Low-pass
			with		DAC			Filter
ML/llS			Function Controller
MC/DM1	Mode
MD/DM0	Control
CS/WO			BPZ-Cont
MODE	I/F	SCK					Open drain
MUTE			Crystal OSC		Power Supply
RST

VoutL

EXTL

VoutR

EXTR

ZERO

• Pin function			XTI XTO CLKO
Pin	Symbol	I/O	Function
No.
1	LRCK	I	LRCK clock input
2	DATA	I	Serial audio data input
3	BCK	I	Bit clock input for serial audio data
4	CLKO	O	Buffered output of system clock
5	XTI	I	Oscillator input / External clock input
6	XTO	O	Oscillator output
7	DGND	-	Digital ground
8	VDD	-	Digital power +5V
9	VDD2R	-	Analog power +5V
10	AGND2R	-	Analog ground
11	EXTR	O	Rch common pin of analog output amp
12	NC	-	Non connection
13	VOUTR	O	Rch analog voltage output of audio signal
14	AGND1	-	Analog ground
15	Vcc1	-	Analog power +5V

Vcc1 AGND1 Vcc DGND

Pin	Symbol	I/O	Function
No.
16	VOUTL	O	Lch analog voltage output of audio signal
17	NC	-	Non connection
18	EXTL	O	Lch common pin of analog output amp
19	AGND2L	-	Analog ground
20	Vcc2L	-	Analog power +5V
21	ZERO	O	Zero data flag
22	RST	I	Reset
23	CS/IWO	I	Chip select / Input format selection
24	MODE	I	Mode control select
25	MUTE	I	Mute control
26	MD/DM0	I	Mode control, Data /
			De-emphasis selection 1
27	MC/DM1	I	Mode control, BCK /
			De-emphasis selection 2
28	ML/IIS	I	Mode control, WDCK /
			Input format selection

1-56 (No.49793)