PMB2349 データシートの表示（PDF） - Infineon Technologies
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PMB2349 Datasheet PDF : 35 Pages
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Confidential
PMB 2349
TARGET SPECIFICATION
Product Info
Product Info
General Description
The PMB 2349 is a RF/IF Dual-PLL
frequency synthesizer implemented in
Infineon’s high speed BiCMOS tech-
nology B6HFC. The device contains
two PLLs with integrated prescalers
especially designed for use in battery
powered radio equipment and mobile
telephones. Primary applications are
single- and dual-band digital cellular
systems e.g. GSM, PCN (DCS 1800)
and PCS systems.
Package
P-VQFN-24-3
Features
Operation range 2.7 to 5.0 V
Ultra low phase noise
Ultra low spurious
Faster lock-in times
New bipolar power modes
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
New programmable Reference
Amplifier
Fast phase detectors and charge
pump outputs without dead zone
External or internal reference cur- Switchable polarity and program-
rent setting for PD outputs
mable phase detector currents
Low operating current consumption Fast serial 3-wire bus interface with
Programmable power down modes
low threshold voltage Schmitt-Trig-
ger inputs for interfacing with low
High input sensitivity and high input
voltage baseband circuits
frequencies: PLL1 (RF): 2.8 GHz
PLL2 (IF): 600 MHz
Two data registers in PLL2 for fast
IF band switching
Programmable dual modulus
prescaler divide ratio:
PLL1: 1:64/65 or 1:32/33
PLL2: 16/17 or 1:8/9
A programmable output port for
lock detect or general porpose
(VCO switch etc.).
Ordering Information
Type
PMB 2349
Ordering Code
Package
P-VQFN-24
Wireless Components
Product Info
Specification, May 2000
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