KRF-V7771D/V8881D/VR-2080/2090
16
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Connect
Description
64
DSP1_GPI0
O
P. D.
DSP IC1 (AC-3) DSP MODE USE SETTING PARAMETER
65
DATA_IN
I
P. D.
DIR OUTPUT DETECT H: DIGITAL DATA IN
66
N. C.
I
P. D.
–
67
N. C.
I
P. D.
–
68
Vdd
–
+5V
69, 70
X2, 1
–
–
CLOCK OSCILLATOR 4.23MHz
71
IC (Vpp)
–
GND
–
72
N. C.
–
OPEN
–
73
P07
–
–
–
74
AVdd
–
+5V
–
75
AVrefo
–
GND
–
76
DSP2_HREQ
I
P. D.
DSP IC2 (DTS) HOST REQUEST
77
DSP2_SS
O
P. U.
DSP IC2 (DTS) SLAVE SELECT
78
DSP2_RESET
O
P. D.
DSP IC2 (DTS) RESET
79
DSP1_HREQ
I
P. D.
DSP IC1 (AC-3) HOST REQUEST
80
DSP1_SS
O
P. U.
DSP IC1 (AC-3) SLAVE SELECT
Pin No.
Pin Name
Description
3
SCL/CCLK
Serial communication CLOCK
4
SDA/CDOUT
Serial data line CS4226
î
SUB uCOM
5
ADI/CD IN
Serial data line SUB uCOM
î
CS4226
6
ACO/CS
CS4226 CHIP SELECT
7
SPI/I2C
Serial control format setting
8
PDN
Powerdown Pin
9
AIN3R/AUDIO
audio/non-audio detect
10
AIN3L/AUTODATA
Input C bit, V bit H : Signal of AC-3, MPEG, DTS
11
AIN2L/FREQ0
Channel Status Freq. Bit
12
AIN2R/FREQ1
Channel Status Freq. Bit
30
OVL/ERR
Input Analog : ADC clipping indicator
Input Digital : D/PDIF error indicator
48kHz
Reserved
L
H
H
L
Exist
None
AC3, MPEG, DTS
1
0
6-3 DIR A/D & D/A CONVERTER (CODEC) CS4226KQC (X08 : IC62)
6-3-1 CODEC CS4226
Main pin description
IC62 (CODEC)
IC66 (Sub u-COM)
INPUT SOURCE
∞
CS_OVL_ERR
™
PEAK_LEVEL OUTPUT
DIGITAL
don't care
L
ANALOG
L
L
H
H
∞
CLIP INDICATOR (X25 : D66) CONTROL
H : LED LIGHTING
KRF-V7771D(K)
COVER(
98.12.8
18:58
y [ W 23
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