GM6535
GM6535
60 MHz Universal Programmable
Dual PLL Frequency synthesizer
GENERAL DESCRIPTIONS
FEATURES
The GM6535 is a dual phase – locked loop
(PLL) frequency synthesizer especially designed for
CT-1 cordless phone applications worldwide. This
frequency synthesizer is also for any products with
frequency operation at 60 MHz or below.
• Operating Voltage Range: 2.5 to 5.5 V
• Operating Temperature Range:-40 to +75¡ É
• Operating Power Consumption:3.0mA@2.5V
• Maximum Operating Frequency:
60MHz@200mVp-p, VDD=2.5V
• 3 or 4 Pins Used for serial MCU Interface
• Power Saving Mode Controlled by MCU
• Lock Detect Signal
• On-Chip Reference Oscillator Supports External
Crystals to 16.0 MHz
• Reference Frequency Counter Division Range: 16 to
4095
The device features fully programmable
receive, transmit, reference, and auxiliary reference
counters accessed through an MCU serial interface,
this feature allows this device to operate in any CT-
1 cordless phone application.
The device consists of two independent phase
detectors for transmit and receive loops. A common
reference oscillator, driving two independent
reference frequency counters, provides independent
reference frequencies for transmit and receive loops.
• Auxiliary Reference Frequency Counter Division
Range: 16 to 16,383
• Transmit Counter Division Range:16 to 65,535
• Receive Counter Division Range: 16 to 65,53
The auxiliary reference counter allows the
user to select an additional reference frequency for
receive and transmit loops if required.
P IN CONF IGURAT ION
CLK
1
2
3
5
6
7
8
16
15
14
9
Tx PDOUT
1
16
14
CLK
AD in
D in
ENB
MCUCLK
Vss
LD
Tx PDOUT
AD in
2
3
fin-T
TxPS/fTx
VDD
RxPS/fRx
fin-T
TxPS/fTx
D in
ENB
4
5
6
11
MCUCLK
Vss
VDD
RxPS/fRx
RxPDo
RxPDo
10
OSCout
OSCi
7
OSCout
OSCi
fin-R
fin-R
16 SOP (150Mil)
16DIP
ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to vss )
Ranting
Value
-0.5 to +6.0
-0.5 to VDD +0.5
10
Unit
V
V
mA
mA
¡ É
Symbol
VDD
Vin
Iin , Iout
IDD , ISS
Tstg
DC Supply Voltage
Input Voltage, all Inputs
DC Current Drain Per Pin
DC Current Drain VDD or VSS Pins
Storage Temperature Range
30
-65 to + 150
1