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부품번호 | ZL20250 기능 |
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기능 | 2.5G Multimode Transceiver | ||
제조업체 | Zarlink Semiconductor | ||
로고 | |||
전체 30 페이지수
www.DataSheet4U.com
Features
• Quad Band GSM (800/900/1800/1900 MHz)
Compatible
• Dual Band IS136 (800/1900 MHz) Compatible
• GPRS Class 12 and EDGE Capable
• Fully Integrated Dual Band Transceiver
• Receive - IF to Baseband I and Q
• Transmit - Baseband I / Q to RF
• Integrated Filters
• FM Demodulator
• RF and IF Synthesizers
• Fully Programmable via serial bus
• 3 Volt operation
• Small scale package
Applications
• GAIT IS136/GSM/EDGE Mobile Telephones
• Dual Band (850/PCS1900) TDMA/AMPS Mobile
Telephones
• Cellular 850MHz TDMA/AMPS Mobile
Telephones
• PCS1900 TDMA Mobile Telephones
• 2.5G World Phones - Quad Band
(850/900/1800/1900)
• Cellular Telematic Systems
ZL20250
2.5G Multimode Transceiver
Data Sheet
September 2003
Ordering Information
ZL20250/LCE (Tubes) 56 pin QFN
ZL20250/LCF (Tape and Reel) 56 pin QFN
-40°C to +85°C
Description
The ZL20250 is a fully integrated transceiver for
multimode IS136/GSM/GPRS/EDGE handsets. The
dual IF inputs to the receive path are amplified and
down-converted to baseband I and Q signals. Gain
control and baseband filtering are provided. A FM
demodulator is also provided where AMPS
compatibility is required.
The transmit path consists of a quadrature modulator,
gain control at IF and up-conversion to RF. Dual band
RF outputs are provided.
ZL20250 also includes a fractional N RF synthesizer
and two IF synthesizers to provide all local oscillator
signals required.
Flexible programming is provided via a 3 wire serial
bus. Additional control pins allow accurate timing
control when switching between modes.
GSM/EDGE
IS136
UHF LO O/P
UHF VCO
900 MHz Tx
1900 MHz Tx
90°
Rx VHF
PLL
UHF
PLL
FM
Demod
Tx VHF
PLL
Serial
Interface
Control
Rx I
Rx Q
FM
RSSI
LOCK DET
Tx I
IQ
Mod
Tx Q
Tx IF Filter
(Opt)
Figure 1 - Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved.
ZL20250
Data Sheet
Pin Description Table (continued)
No Pin Name
Type
Description
39 RX CP
40 RSSI
41 RX Q+
42 RX Q-
43 RX I+
44 RX I-
45 FM OUT
46 FM FB
47 RX VCO-
48 RX VCO+
49 VCC RX PLL
50 VCC RX
51 RX GAIN
52 IF0 IN-
53 IF0 IN+
54 IF1 IN-
55 IF1 IN+
56 VCC CONTROL
Output
Output
Output
Output
Output
Output
Output
Power
Power
Input
Input
Input
Input
Input
Power
Receive VHF PLL charge pump output
RSSI Output
Baseband Q signal
Baseband I signal
Demodulated FM output
Feedback to FM output stage
Receive second LO Oscillator tank circuit
Power to receive VHF PLL. Connect to VCC through 10 ohm resistor
Power to receive stages
Receive gain control
IF Input (0)
GSM
IF Input (1)
IS136 Input
Power to serial interface logic
4
Zarlink Semiconductor Inc.
4페이지 ZL20250
Data Sheet
List of Tables
Table 1 - IS136 Receive Gain and Filter Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2 - AMPS FM Receive Gain and Filter Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3 - GSM Receive Gain and Filter Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 4 - Transmit Circuit blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7
Zarlink Semiconductor Inc.
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부품번호 | 상세설명 및 기능 | 제조사 |
ZL20250 | 2.5G Multimode Transceiver | Zarlink Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |