Description Of Major Ics - JVC CH-X1500 Service Manual

CH-X1500
4.1 AK4381VT-X (IC121) : 2ch DAC
• Pin layout
1
2
3
4
5
6
7
8
• Block diagram
CSN
CCLK
CDTI
LRCK
BICK
SDTI
1-30
SECTION 4

Description of major ICs

16
15
14
13
12
11
10
9
De-emphasis
uP
Control
Interface
8X
Audio Interpolator
Data
Interface
8X
Interpolator
PDN
• Pin functions
Pin No Symbol
1 MCLK Master clock input pin
2 BICK Audio serial data clock pin
3 SDTI Audio serial data input pin
4 LRCK L/R clock pin
5 PDN Power-Down mode pin
6 CSN Chip select pin
7 CCLK Control data input pin
8 CDTI Control data input pin
9 AOUTR- Rch negative analog output pin
10 AOUTR+ Rch positive analog output pin
11 AOUTL- Lch negative analog output pin
12 AOUTL+ Lch positive analog output pin
13 VSS Ground pin
14 VDD Power supply pin
15 DZFR Rch data zero input detect pin
16 DZFL Lch data zero input detect pin
MCLK
Clock
Divider
SCF
Modulator
SCF
Modulator
Function
VDD
VSS
DZFL
DZFR
AOUTL+
AOUTL-
AOUTR+
AOUTR-