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ACE9020NP1S Datenblatt(PDF) 1 Page - Zarlink Semiconductor Inc

Teilenummer ACE9020NP1S
Bauteilbeschribung  Receiver and Transmitter Interface
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Hersteller  ZARLINK [Zarlink Semiconductor Inc]
Direct Link  http://www.zarlink.com
Logo ZARLINK - Zarlink Semiconductor Inc

ACE9020NP1S Datenblatt(HTML) 1 Page - Zarlink Semiconductor Inc

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ACE9020 is a VHF oscillator, up-converter and prescaler.
It is used in an offset modulated transmit architecture where a
UHF synthesiser makes the channel selection and a second
synthesiser generates a fixed transmit offset.
A VCO signal drives a buffer in ACE9020 to feed an on-
chip prescaler and transmit up-converter. The prescaler is a
dual two-modulus divider and drives the main synthesiser
input of the ACE9030. The SSB up-converter suppresses the
unwanted transmit sideband.
The VHF oscillator is buffered to drive the auxiliary
synthesiser input of the ACE9030 and is locked to the offset
frequency. This frequency is modulated by varying the
resonant frequency of the external tank circuit. Both this
oscillator and the UHF VCO drive the up-converting mixer to
generate the transmit signal.
Various power saving modes for battery economy are
included. These allow the transmit sections to be shut down
during stand-by and the whole chip can be shut down during
sleep mode. The circuit techniques used have been chosen to
minimise external components and at the same time give very
high performance.
Features
Low Power Low Voltage (3.6 to 5.0 V) Operation
Power Down Modes
Differential Signals to Minimise Cross-talk
Auxiliary Oscillator with Transmit Up-converter
Prescaler for Main Synthesiser
Part of the ACE Integrated Cellular Phone Chipset
Small Outline 28 pin Package
Applications
AMPS and TACS Cellular Telephone
Two-Way Radio Systems
Related Products
ACE9020 is part of the following chipset:
ACE9030 Radio Interface and Twin Synthesiser
ACE9040 Audio Processor
ACE9050 System Controller and Data Modem
ABSOLUTE MAXIMUM RATINGS
Supply voltage
6V
Storage temperature
- 65
°Cto+150°C
Operating temperature
- 30
°Cto+85°C
Voltage at any pin
-0.3V to V
CC +0.3V
Static Sensitivity (HBM) min
500V
Figure 2 - ACE9020 simplified block digram
ACE9020
Receiver and Transmitter Interface
DS4287
ISSUE 5.0
December 1997
Ordering Information
SSOP 28 lead package, code NP28
ACE9020B/KG/NP1S - anti-static sticks
ACE9020B/KG/NP1T - tape mounted
Figure 1 - Pin connections - top view
PD1
PD2
GND
BIAS_REF
VCC_TX
TXPA+
TXPA-
RSET_TXPA
GND_TXOSC
TANK+
TANK-
VCC_DIV
GND_OSC
MOD_CNTRL
DIV_OUT+
DIV_OUT-
RATIO_SEL
GND_DIV
TXOSC+
TXOSC-
VCC_TXOSC
GND_RX
RXVCOIN
n.c.
VCC_RX
n.c.
n.c.
VCC
128
14
15
Note: Pin 1 is identified by moulded spot
and by coding orientation.
NP28
VHF
OSC
RSET_TXPA
TANK+
TANK-
TXOSC+
TXOSC-
TXPA+
TXPA-
BIAS &
POWER
DOWN
CONTROL
BIAS_REF
PD1
PD2
RXVCOIN
DIV_OUT+
DIV_OUT-
RATIO_SEL
MOD_CNTRL
DIVIDE BY
64/65 OR 128/129


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