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參數(shù)資料
| 型號： | PMB2347 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2800 MHz, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 23/35頁 |
| 文件大?。?/td> | 578K |
| 代理商： | PMB2347 |
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Productinfo
Product Info
Wireless Components
Specification, August 1999
Package
PMB 2347
preliminary
Productinfo
General Description
The PMB 2347 is a RF/IF double PLL
frequency synthesizer implemented in
Infineon’ high speed BiCMOS technol-
ogy B6HFC. The device contains two
PLLs with integrated prescalers espe-
cially designed for use in battery pow-
ered radio equipment and mobile
telephones. Primary applications are
single- and dual-band digital cellular
systems e.g. GSM, PCN (DCS 1800)
and PCS systems.
Features
s
Operation range 2.7 to 5.0 V
s
Low operating current consumption
s
Programmable power down modes
s
High input sensitivity and high input
frequencies: PLL1 (RF): 2.8 GHz
PLL2 (IF): 500 MHz
s
Programmable dual modulus
prescaler divide ratio:
PLL1: 1:64/65 or 1:32/33
PLL2: 16/17 or 1:8/9
Dividing ratios:
A counters:
PLL1: 0 to 63
PLL2: 0 to 15
N counters:
PLL1: 3 to 16,383
PLL2: 3 to 16,383
R counters 3 to 16,383 for PLL1
and PLL2
s
Fast phase detectors and charge
pump outputs without dead zone
s
High phase noise performance
s
Switchable polarity and program-
mable phase detector currents
s
External reference current setting
for PD outputs
s
Fast serial 3-wire bus interface with
low threshold voltage Schmitt-Trig-
ger inputs for interfacing with low
voltage baseband circuits
s
Two data registers in PLL2 for fast
IF band switching
s
A programmable multi-functional
output port for lock detect (quasi-
digital lock detect) and test mode
Ordering Information
Type
Ordering Code
Package
PMB 2347
P-TSSOP-20
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