sp5524 Zarlink Semiconductor, sp5524 Datasheet - Page 8

• Manufacturer Part Number: sp5524
• Description: Bidirectional I2c Bus Controlled Synthesiser
• Manufacturer: Zarlink Semiconductor

RF INPUTS
ON P6
NOT
V
13
14
CC
550
V
Ports P0 - P3, P6 and P7
REF
Reference oscillator
550
RF input
2
3
CRYSTAL Q1
CRYSTAL Q2
Fig. 6 Input/output interface circuits
PORT
SCL/SDA
SCL and SDA inputs
*
*
Loop amplifier
ON SDA ONLY
3k
V
CC
170
16
1
CHARGE
PUMP
DRIVE
OUTPUT
V
ACK
CC
SP5524
7