HD155121F PDF даташит
Спецификация HD155121F изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «RF Transceiver IC for GSM and PCN Dual band cellular systems». |
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Детали детали
Номер произв | HD155121F |
Описание | RF Transceiver IC for GSM and PCN Dual band cellular systems |
Производители | Hitachi Semiconductor |
логотип |
30 Pages
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HD155121F
RF Transceiver IC for GSM and PCN Dual band cellular systems
ADE-207-265A (Z)
2nd Edition
May 1999
Description
The HD155121F is a RF transceiver IC for GSM and PCN dual band cellular systems, and integrates most
of the low power silicon functions of a transceiver. The HD155121F incorporates two bias circuits for RF
LNAs, two first mixers, a second mixer, a programmable gain amplifier, and an IQ demodulator for the
receiver, and an IQ modulator and offset PLL for the transmitter. Also, on chip are dividers for the phase
splitter. Moreover the HD155121F includes control circuits to implement power saving modes. These
functions can operate down to 2.7 V and are housed in a 48-pin LQFP SMD package.
Hence the HD155121F can form a small size transceiver handset for dual band by adding a dual PLL
frequency synthesizer IC, power amplifiers and some external components.
The HD155121F is fabricated using a 0.6 µm double-polysilicon Bi-CMOS process.
Functions
Receiver(Rx)
• Low Noise Amplifier (LNA) bias circuit
• First mixer
• IF amplifier and second mixer
• Programmable Gain Amplifier (PGA)
• IQ demodulator with 90 degree phase splitter
Transmitter(Tx)
• IQ modulator with 90 degree phase splitter
• Offset PLL
Down converter
Phase comparator
TXVCO driver
Others
• IF dividers
• Power saving control circuit
• IFVCO
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HD155121F
Features
• Highly integrated RF processing for hand-portables
• Operating supply voltage
VCC : 2.7 to 3.6 V
Phase comparator and TXVCO driver circuit : 2.7 to 5.25 V
• Current consumption
Rx mode (GSM) : 53 mA + LNA current
Rx mode (PCN) : 52 mA + LNA current
Tx mode (GSM) : 36 mA
Tx mode (PCN) : 37 mA
Idle mode :1 µA
• Operating temperature : –20 to +75 degree
• LQFP 48pin SMD (Low Profile Quad Flat Package)
• Wide operating frequencies
Rx
RF
GSM : 925 - 960 MHz
PCN : 1805 - 1880 MHz
1st IF
: 225 MHz
2nd IF
: 45 MHz
Tx
RF
GSM : 880 - 915 MHz
PCN : 1710 - 1785 MHz
IF GSM : 270 MHz
PCN : 135 MHz
• Offset PLL architecture for Transmitter
• High dynamic range Programmable Gain Amplifier (PGA)
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Pin Arrangement
HD155121F
MIX1INB1
MIX1IN1
RFOUT
RFIN1
RFIN2
VCCPLL
GNDPLL
VCOIN2
VCOIN1
VCCCOMP
PLLOUT
ICURAD
48 47 46 45 44 43 42 41 40 39 38 37
1 36
2 35
3 34
4 33
5 32
6 31
7 30
8 29
9 28
10 27
11 26
12 25
13 14 15 16 17 18 19 20 21 22 23 24
IFLO
BAND
IFVCOO
IFVCOI
VCCIF
GNDIF
IFIN
IFINB
LE
SDATA
CLK
MIX2O
(Top View)
3
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Номер в каталоге | Описание | Производители |
HD155121F | RF Transceiver IC for GSM and PCN Dual band cellular systems | Hitachi Semiconductor |
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