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| SP5511 Datasheet, PDF (7/12 Pages) Zarlink Semiconductor Inc – Bidirectional I2C Bus 4-Address Synthesiser | |||
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VREF
550
550
RF INPUTS
RF input
VCC
30k
P3
10k
Address programming port
SP5511
VCC
CHARGE
PUMP
170
DRIVE
OUTPUT
Loop amplifier
VCC
3k
SCL/SDA
*
ACK
* ON SDA ONLY
SCL and SDA inputs
CRYSTAL Q1
CRYSTAL Q2
Reference oscillator
NOT ON
P0-P2
PORT
12k*
*NO RESISTOR
ON P4-P7
Ports P0-P2 and P4-P7 (SP5511).
P4- P7 only on SP5511S
Fig. 6 SP5511 input/output interface circuits
7
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