Service manual
54
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
IC2 : LC89057W-VF4D-E (DSP P.C.B.)
Digital Audio Interface Transceiver
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
RXOUT
RX0
RX1
RX2
RX3
DGND
DVDD
RX4
RX5/VI
RX6/UI
DVDD
DGND
LPF
ACDD
AGND
RMCK
RBCK
DGND
DVDD
RLRCK
RDATA
SBCK
SLRCK
SDIN
DGND
DVDD
XMCK
XOUT
XIN
DVDD
DGND
EMPHA/UO
AUDIO/VO
CKST
INT
RERR
DO
DI
CE
CL
XMODE
DGND
DVDD
TMCK/PIO0
TMCK/PIO1
TLRCK/PIO2
TLRCK/PIO3
TXO/PIOEN
O
I5
I
I5
I5
I5
I5
I5
O
O
O/I
O/I
O
O
O
I5
O
O
I
I/O
I/O
I/O
I/O
O
O
I5
I5
I5
I5
I/O
I/O
I/O
I/O
O/I
Input bi-phase selection data output pin
TTL-compatible digital data input pin
Coaxial-compatible digital data input pin with built-in amplifier
TTL-compatible digital data input pin
TTL-compatible digital data input pin
Digital GND
Digital power supply
TTL-compatible digital data input pin
TTL-compatible digital data / Validity flag input pin for modulation
TTL-compatible digital data / User data input pin for modulation
PLL digital power supply
PLL digital GND
PLL loop filter connection pin
PLL analog power supply
PLL analog GND
R system clock output pin (256fs, 512fs, XIN, VCO)
R bit clock input/output pin
Digital GND
Digital power supply
R LR clock input/output pin (fs)
Serial audio data input pin
S bit clock output pin (32fs, 64fs, 128fs)
S LR clock output pin (fs/s, fs, 2fs)
Serial audio data input pin
Digital GND
Digital power supply
Oscillation amplifier output pin
Crystal resonator connection output pin
Crystal resonator connection, external supply clock input pin (24.576 MHz or 12.288 MHz)
Digital power supply
Digital GND
Emphasis information / U data output / Chip address setting pin
Non-PCM output / V flag output / Chip address setting pin
Clock switch transition period signal / Demodulation master or slave function switch pin
Microcontroller interrupt output / Modulation or general-purpose I/O switch pin
PLL clock error, data error flag output
Microcontroller I/F read data output pin (3-state)
Microcontroller I/F write data input pin
Microcontroller I/F chip enable input pin
Microcontroller I/F clock input pin
System reset input pin
Digital GND
Digital power supply
Modulation 256fs system clock input / General-purpose I/O input/output pin
Modulation 64fs bit clock input / General-purpose I/O input/output pin
Modulation fs clock input / General-purpose I/O input/output pin
Modulation serial audio data input / General-purpose I/O input/output pin
Modulation data output / General-purpose I/O enable input pin
No.
Name I/O
Function
1) Input/output I or O = -0.3 to 3.6V, I
5
= -0.3 to 5.5V
2) Pins 32 and 33 are latch address setting input pins when pin 41 = "L".
3) Pin 34 is a demodulation function master or slave setting input pin when pin 41 = "L".
4) Pin 35 is a modulation function or general-purpose I/O function switch setting input pin when pin 41 = "L".
5) Perform ON/OFF for all power supplies with the same timing as a latch-up countermeasure.