Pin Layout - Onkyo TX-NR901 Service Manual

IC BLOCK DIAGRAMS AND DESCRIPTIONS
Q606 BR93LC46F ( 64x16bits serial EEPROM
BLOCK DIAGRAM
CS
SK
DI
DO

PIN LAYOUT

N.C. 1
VCC 2
CS 3
SK 4
Q2751 TC90A69F ( 3-LINES DIGITAL FILTER
28 27 26
DAC
8fsc
INTERPOLATION
1 2 3
Command decode
Control
Clock generation
Address
Command
buffer
register
Data
register
Dummy bits
TERMINAL DESCRIPTION
Function
8 N.C. 3
4
7 GND
5
6
6 DO
7
8
5 DI
1
2
25 24 23 22
IC BLOCK DIAGRAMS AND DESCRIPTIONS
PLL DET VCO
DAC
Q606 BR93LC46F (
1/8
CORING Ped.
+
LPF
CLIP
PEAKING
KILLER
ADC
4 5 6 7
)
Power supply
voltage detector
High voltage
Write
generator
disable
Address
6bits
6bits
decoder
R / W
16bits
16bits
amplifier
Pin No. Pin name
CS Chip select input
SK Serial clock input
DI Start bit, operating code, address, and serial data input
DO Serial data output, READY / BUSY internal status display output
GND Ground
N.C. Not connected
N.C. Not connected
VCC Power supply
)
21 20 19 18
1/2
8fsc 4fsc
64x16bits serial EEPROM
CORING V-ENHANCER
+
DELAY
LINE LINE
MEMORY MEMORY
CNR DYNAMIC COMB
C-N.C FILTER
Sync Clamp
8 9 10 11
TX-NR901
1,024bits
EEPROM array
17 16 15
2
I CBUS
)
12 13 14