Pioneer GEX-P900DAB Service Manual page 47

- Pin Functions (U2733B-CFS)
Pin No. Pin Name
1 PD
2 VD
3 PLCK
4 REF
5 NREF
6 ADR
7 SCL
8 SDA
9 NFDO
10 FDO
11 SWC
12 SWD
13 SWE
14 SWF
15 SWG
16 SWH
17 NRF
18 RF
19 GND
20 VS
U2733B-CFS
20 19
FREQUENCY
DOUBLER x2
REFERENCE
COUNTER
FRACTIONAL
N CONTROL
PROG.
13 BIT COUNTER
:N,N+1
2 BIT
15 BIT LATCH
LATCH
I2C BUS-INTERFACE/CONTROL
1 2
I/O Function and Operation
O Three-state charge pump output
O Active filter output
O Lock indicating output (open collector)
I Reference input
I Reference input (inverted)
Address selection
Clock (I 2 C)
Data (I 2 C)
O Frequency doubler output (inverted, open collector)
O Frequency doubler output (open collector)
O Switching output (open collector)
O Switching output (open collector)
O Switching output (open collector)
O Switching output (open collector)
O Switching output (open collector)
O Switching output (open collector)
I RF input (inverted)
I RF input
Ground
Supply voltage
18 17 16
THREE STATE
PHASE
DETECTOR
LOCK
DETECTOR
3 4 5
15 14 13
SWITCHES
MUX
7 BIT LATCH
PROG.
CHARGE
PUMP
4 BIT LATCH
6 7 8
GEX-P900DAB
12 11
MUX
9 10
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