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Frequency Synthesizer. ICS31202 Datasheet

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Frequency Synthesizer. ICS31202 Datasheet






ICS31202 Synthesizer. Datasheet pdf. Equivalent




ICS31202 Synthesizer. Datasheet pdf. Equivalent





Part

ICS31202

Description

Dual Frequency Synthesizer



Feature


Integrated Circuit Systems, Inc. ICS312 02 Preliminary Product Preview Dual Fr equency Synthesizer General Description The ICS31202 is an integrated Dual Fre quency Synthesizer designed for RF Pers onal Communication systems requiring tw o independent frequencies. It is one of the lowest cost and smallest size solu tions for 900MHz applications. The ICS3 1202 contains two .
Manufacture

Integrated Circuit Systems

Datasheet
Download ICS31202 Datasheet


Integrated Circuit Systems ICS31202

ICS31202; dual modulus prescalers. A 32/ 33 presca ler can be selected for each RF synthes izer . A common reference divider chain is included for required frequency res olution. Combined with a high quality r eference oscillator and loop filter , t he ICS31202 provides the tuning voltage s for the external VCO's to generate ve ry stable, low noise RF Local Oscillato r signals. Serial .


Integrated Circuit Systems ICS31202

data is transferred using a three wire i nterface. ICS31202 allows synchronous l oading of counters via data line. Cryst al inputs are in parallel mode. The ICS 31202 is fabricated using state-of-the art CMOS process. It is available in a 16-pin 4.4mm TSSOP package with 0.65mm pitch. The ICS31202 is a direct replace ment for Toshiba TB31202. Features • • • • • • • • • • •.


Integrated Circuit Systems ICS31202

• Smallest Size Dual RF Sythesizer in the market. Integrated Dual PLL with pr escalers Dual Modulus Prescaler: 32/33 Provides excellent isolation between Tx , Rx signals. Input frequency range of 200-600 MHz 2.7V to 4.5V operation Soft ware controlled Power Down Mode Selecta ble charge pump current levels (100 to 800 µA) Current consumption, 3mA per c hannel @ 2.7V/500MHz.

Part

ICS31202

Description

Dual Frequency Synthesizer



Feature


Integrated Circuit Systems, Inc. ICS312 02 Preliminary Product Preview Dual Fr equency Synthesizer General Description The ICS31202 is an integrated Dual Fre quency Synthesizer designed for RF Pers onal Communication systems requiring tw o independent frequencies. It is one of the lowest cost and smallest size solu tions for 900MHz applications. The ICS3 1202 contains two .
Manufacture

Integrated Circuit Systems

Datasheet
Download ICS31202 Datasheet




 ICS31202
Integrated
Circuit
Systems, Inc.
ICS31202
Preliminary Product Preview
Dual Frequency Synthesizer
General Description
The ICS31202 is an integrated Dual Frequency Synthesizer
designed for RF Personal Communication systems requiring
two independent frequencies. It is one of the lowest cost and
smallest size solutions for 900MHz applications.
The ICS31202 contains two dual modulus prescalers. A 32/
33 prescaler can be selected for each RF synthesiz.eAr common
reference divider chain is included for required frequency
resolution. Combined with a high quality reference oscillator
and loop filter , the ICS31202 provides the tuning voltages
for the external VCO's to generate very stable, low noise RF
Local Oscillator signals. Serial data is transferred using a
three wire interface. ICS31202 allows synchronous loading
of counters via data line. Crystal inputs are in parallel mode.
The ICS31202 is fabricated using state-of-the art CMOS
process. It is available in a 16-pin 4.4mm TSSOP package
with 0.65mm pitch. The ICS31202 is a direct replacement
for Toshiba TB31202.
Features
• Smallest Size Dual RF Sythesizer in the market.
• Integrated Dual PLL with prescalers
• Dual Modulus Prescaler: 32/33
• Provides excellent isolation between Tx, Rx signals.
• Input frequency range of 200-600 MHz
• 2.7V to 4.5V operation
• Software controlled Power Down Mode
• Selectable charge pump current levels (100 to 800 µA)
• Current consumption, 3mA per channel @ 2.7V/500MHz
• Synchronous loading of counters
• High Input sensitivity, 87-100dBµV (-24dBm)
• 16-pin TSSOP Package
Applications
• 900MHz Cordless telephone systems (DCT, ISM, PHS, CT2)
• Personal communications systems (GSM, PDC, PCS)
• Cellular telephone systems
• CATV, Cable Modems
• Other RF/wireless communication systems
Block Diagram
FIN1 =
Figure 1
FXIN •(32N1 +A1) , D= 4 to 4068, N1 ≤ 4068, A1=0 to 31, Channel Spacing = 2x FXIN
DD
FIN2 = FXIN •(32N2 +A2) , D= 4 to 4068, N2 ≤ 4068, A2=0 to 31, Channel Spacing = 2x FXIN
DD
ICS31202 Rev C 05/28/98
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
http://www.Datasheet4U.com




 ICS31202
ICS31202
Preliminary Product Preview
Pin Description
Pin No.
1
2
Pin Name
FIN1
VDD1
RF Input 1
Function
Supply input for Channel 1 p rescalers, dual mode and Charge Pump.
3
CP1
Charge pump 1 output pin. Charge pump is a co nstant current output circuit, and output current
is varied by serial data input.
4
GND
Ground pin
5 LD Lock detection output pin. LD is an open drain output.
6
CLK
Clock input pin
7
DATA
Serial data input pin
3-wire Serial Input Pins
8 STB Strobe input pin
9B
O
Buffer amplifier output pin. T he signal of o n chip oscillator is output through the buffer
amplifier.
10
XOUT
On-chip oscillator signal output pin
11 XIN On-chip oscillator signal input.External oscillator signal should be connected to this pin.
12 SW External loop filter component select pin. Default mode tristate can be programmed to g o to gnd.
13
GND
Ground input pin. Pin 4 and pin 13 are connected in IC.
14 CP2 Charge pump 2 output pin.
15
VDD2
Supply input for Channel 2 p rescalers, dual mode and Charge Pump.
16
FIN2
RF Input 2
2




 ICS31202
Maximum Ratings (T a = 25ºC)
Characteristics
Power Supply Voltage
Power Dissipation*
Operating Temperature
Storage Temperature
Symbol
VDD
PD
Topr
Tstg
Rating
6V
97
-0 to +85
-55 to +150
Unit
°C/W
ºC
ºC
ICS31202
Preliminary Product Preview
Electrical Characteristics
(Unless otherwise specified,VDD = 2.7V,Ta = 25ºC)
Characteristic
Symbol
Test
Circuit
Test Condition
Min. Typ. Max. Unit
Operating Power Supply Voltage
Operating Cu rrent Consumption
Standby Current
FINOperating Frequency
FinInput Sensitivity
XINOperating Frequency
XINInput Volltage
Input Voltage
CLK Input Frequency
Charge Pump Output Current
Charge Pump OFF Leakage Current
SW Terminal ON Resistance
LD Terminal ON Resistance
SW Terminal; OFF Leakage Current
LD Terminal OFF Leakage Current
VDD Fig. 5 Ta= 0-85ºC
2.7 3 3.3 V
ICCO
ICCQ
FIN1
FIN2
VIN1
VIN2
fXI
VXI
VIH
VIL
fCLK
ICP1
ICP2
ICP3
ICP4
CPOFF
RSW
RLD
SWOFF
LDOFF
Fig. 5
CH1=300MHz, CH2=300MHz
(i) XTAL low power mode 102dBµV
Fig. 5 (ii) XTAL high drive mode
Fig. 5 At standby mode, RF Input OFF
Fig. 7 VIN1=93dBuV
Fig. 7 VIN2=93dBuV
Fig. 7 fIN1= 200~520MHz
Fig. 7 fIN2= 200~520MHz
Fig. 7 VX= 0.5Vp-p, Sinewave
Fig. 7 fX=I 4MHz
Fig. 5 STB, DATA, CLK
Fig. 5 STB, DATA, CLK
Fig. 5 CLK
Fig. 5 "CP1"= 0, "CP2"= 0, V CP=1.1V
Fig. 5 "CP1"= 0, "CP2"= 1, V CP=1.1V
Fig. 5 "CP1"= 1, "CP2"= 0, V CP=1.1V
Fig. 5 "CP1"= 1, "CP2"= 1, V CP=1.1V
Fig. 5 Standby mode, V CP= 1.1V
Fig. 5 SWON
Fig. 5 LDON
Fig. 5 SWOFF
Fig. 5 LDOFF
81 1 mA
8.35 12 mA
--- --- 10 µA
200 --- 520
MHz
200 --- 520
93 --- 107
dBuV
93 --- 107
4 --- 25 MHz
102 --- 112 dBuV
VDD× 0 .8 ---
---
V
--- --- VDD×0.2
--- --- 1 MHz
--- ±100 ---
--- ±200 ---
µA
--- ±400 ---
--- ±800 ---
--- --- ±1.0 µA
--- 500 --- Ohms
--- 500 --- Ohms
--- --- ±1.0 µA
--- --- ±1.0 µA
Note: Test setup as shown in Fig. 5
3



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