(PDF) OM5156M Datasheet PDF | NXP





OM5156M Datasheet PDF

Part Number OM5156M
Description Low Voltage Dual Frequency Synthesizer for Radio Telephones
Manufacture NXP
Total Page 20 Pages
PDF Download Download OM5156M Datasheet PDF

Features: Datasheet pdf INTEGRATED CIRCUITS DATA SHEET OM5156M Low-voltage dual frequency synthesizer for radio telephones Product specific ation Supersedes data of 1995 Jun 27 Fi le under Integrated Circuits, IC03 1995 Nov 24 Philips Semiconductors Produc t specification Low-voltage dual freq uency synthesizer for radio telephones FEATURES • Low current from 3 V suppl y • Fully programmable RF divider • 3-line serial interface bus • Second synthesizer to control first IF or off set loop frequency • Independent full y programmable reference dividers for e ach loop, driven from external crystal oscillator • Dual phase detector outp uts to allow fast frequency switching Dual power-down modes. APPLICATIONS • 2 GHz mobile telephones • Portabl e battery-powered radio equipment. GENE RAL DESCRIPTION The OM5156M BICMOS devi ce integrates prescalers, programmable dividers, and phase comparators to impl ement two phase-locked loops. The devic e is designed to operate from 3 NiCd cells, in pocket phones, QUICK REFERENCE DATA SY.

Keywords: OM5156M, datasheet, pdf, NXP, Low, Voltage, Dual, Frequency, Synthesizer, for, Radio, Telephones, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute, Equivalent

OM5156M datasheet
INTEGRATED CIRCUITS
DATA SHEET
OM5156M
Low-voltage dual frequency
synthesizer for radio telephones
Product specification
Supersedes data of 1995 Jun 27
File under Integrated Circuits, IC03
1995 Nov 24

OM5156M datasheet
Philips Semiconductors
Low-voltage dual frequency
synthesizer for radio telephones
Product specification
OM5156M
FEATURES
Low current from 3 V supply
Fully programmable RF divider
3-line serial interface bus
Second synthesizer to control first IF or offset loop
frequency
Independent fully programmable reference dividers for
each loop, driven from external crystal oscillator
Dual phase detector outputs to allow fast frequency
switching
Dual power-down modes.
APPLICATIONS
2 GHz mobile telephones
Portable battery-powered radio equipment.
GENERAL DESCRIPTION
The OM5156M BICMOS device integrates prescalers,
programmable dividers, and phase comparators to
implement two phase-locked loops. The device is
designed to operate from 3 NiCd cells, in pocket phones,
with low current and a wide supply voltage range from
2.7 to 5.5 V.
The principal synthesizer operates at RF input frequencies
up to 2 GHz the auxiliary synthesizer operates at
300 MHz. The auxiliary loop is intended for the first IF or to
transmit offset loop-frequency settings. Each synthesizer
has a fully programmable reference divider. All divider
ratios are supplied via a 3-wire serial programming bus.
Separate power and ground pins are provided to the
analog and digital circuits. The ground leads should be
externally short-circuited to prevent large currents flowing
across the die and thus causing damage. Digital supplies
VDD1 and VDD2 must also be at the same potential. VCC
must be equal to or greater than VDD (i.e. VDD = 3 V and
VCC = 5 V for wider tuning range).
The principal synthesizer phase detector uses two charge
pumps, one provides normal loop feedback, while the
other is only active during fast mode to speed-up
switching. The auxiliary loop has a separate phase
detector. All charge pump currents (gain) are fixed by an
external resistance at pin ISET (pin 14). Only passive loop
filters are used; the charge-pumps function within a wide
voltage compliance range to improve the overall system
performance.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
VCC, VDD
ICC + IDD
supply voltage
principal synthesizer supply current
VCC VDD
auxiliary synthesizer in
power-down mode
principal and auxiliary synthesizer
supply current
principal and auxiliary
synthesizers ON
ICCPD, IDDPD
fVCO
fAI
fXTAL
fPPC
fAPC
Tamb
current in power-down mode per supply
principal input frequency
auxiliary input frequency
crystal reference input frequency
principal phase comparator frequency
auxiliary phase comparator frequency
operating ambient temperature
MIN.
2.7
TYP.
9.4
MAX.
5.5
UNIT
V
mA
12.1 mA
1 700
20
5
30
12
1 890
200
200
2 000
300
40
+85
µA
MHz
MHz
MHz
kHz
kHz
°C
ORDERING INFORMATION
TYPE
NUMBER
OM5156M
NAME
SSOP20
PACKAGE
DESCRIPTION
plastic shrink small outline package; 20 leads; body width 4.4 mm
VERSION
SOT266-1
1995 Nov 24
2





Index : 0  1  2  3   4  5  6  7   8  9  A  B   C  D  E  F   G  H  I  J   K  L  M  N   O  P  Q  R   S  T  U  V   W  X  Y  Z
@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)