Kenwood KRF-V7771D Service Manual page 15

KRF-V7771D/V8881D/VR-2080/2090
QQ
3 7 63 1515 0
Pin No. Pin Name
64 DSP1_GPI0
65 DATA_IN
66 N. C.
67 N. C.
68 Vdd
69, 70 X2, 1
71 IC (Vpp)
72 N. C.
73 P07
74 AVdd
75 AVrefo
76 DSP2_HREQ
77 DSP2_SS
78 DSP2_RESET
79 DSP1_HREQ
80 DSP1_SS
6-3 DIR A/D & D/A CONVERTER (CODEC) CS4226KQC (X08 : IC62)
6-3-1 CODEC CS4226
Main pin description
Pin No. Pin Name
3 SCL/CCLK
TE
L 13942296513
4 SDA/CDOUT
5 ADI/CD IN
6 ACO/CS
7 SPI/I2C
8 PDN
9 AIN3R/AUDIO
10 AIN3L/AUTODATA
11 AIN2L/FREQ0
12 AIN2R/FREQ1
30 OVL/ERR
-= FREQ0/FREQ1
32kHz
FREQ1 H
FREQ0 H
0 AC3
AC-3/MPEG Data Stream Input
AC3, MPEG, DTS
www
∞ CLIP INDICATOR (X25 : D66) CONTROL
INPUT SOURCE ∞ CS_OVL_ERR
.
DIGITAL
ANALOG
H : LED LIGHTING
16
CIRCUIT DESCRIPTION
I/O Connect
O P. D.
I P. D.
I P. D.
I P. D.
– +5V
– –
– GND
– OPEN
– –
– +5V
– GND
I P. D.
O P. U.
O P. D.
I P. D.
O P. U.
Serial communication CLOCK
Serial data line CS4226
Serial data line SUB uCOM î CS4226
CS4226 CHIP SELECT
Serial control format setting
Powerdown Pin
audio/non-audio detect
Input C bit, V bit
Channel Status Freq. Bit
Channel Status Freq. Bit
Input Analog : ADC clipping indicator
Input Digital : D/PDIF error indicator
44.1kHz 48kHz Reserved
L L H
L H L
Exist None
1 0
x ao
IC62 (CODEC) IC66 (Sub u-COM)
y
™ PEAK_LEVEL OUTPUT
i
don't care
L
H
8
DSP IC1 (AC-3) DSP MODE USE SETTING PARAMETER
DIR OUTPUT DETECT H: DIGITAL DATA IN
–
–
CLOCK OSCILLATOR 4.23MHz
–
–
–
–
–
DSP IC2 (DTS) HOST REQUEST
DSP IC2 (DTS) SLAVE SELECT
DSP IC2 (DTS) RESET
DSP IC1 (AC-3) HOST REQUEST
DSP IC1 (AC-3) SLAVE SELECT
Description
Q Q
3 6 7 1 3
î SUB uCOM
H : Signal of AC-3, MPEG, DTS
u163
.
L
L
H
2 9 9 4 2 8
Description
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9