SA58640 NXP Semiconductors, SA58640 Datasheet
SA58640
Manufacturer Part Number
SA58640
Description
Low-voltage mixer FM IF system
Manufacturer
NXP Semiconductors
Datasheet
1.SA58640.pdf
(16 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SA58640DK
Manufacturer:
NXP/恩智浦
Quantity:
20 000
1. Introduction
2. General description
3. Features
4. Applications
The SA58640 was designed for cordless telephone applications in which efficient and
economic integrated solutions are required and yet high performance is desirable.
Although the product is not targeted to meet the stringent specifications of high
performance cellular equipment, it will exceed the needs for analog cordless phones. The
minimal amount of external components and absence of any external adjustments makes
for a very economical solution.
The SA58640 is a low-voltage monolithic FM IF system incorporating a mixer/oscillator,
two limiting intermediate frequency amplifiers, quadrature detector, logarithmic RSSI,
voltage regulator and audio and RSSI opamps. The SA58640 is available in a 20-pin
SSOP.
SA58640
Low-voltage mixer FM IF system
Rev. 01 — 1 November 2004
Low power consumption: 5.0 mA typical at 5 V
Mixer input to >100 MHz
Mixer conversion power gain of 17 dB at 45 MHz
XTAL oscillator effective to 100 MHz (LC oscillator or external oscillator can be used at
higher frequencies)
102 dB of IF amp/limiter gain
2 MHz IF amp/limiter small signal bandwidth
Temperature compensated logarithmic RSSI with a 70 dB dynamic range
Low external component count; suitable for crystal/ceramic/LC filters
Audio output internal opamp
RSSI output internal opamp
Internal opamps with rail-to-rail outputs
ESD protection: Human body model 2 kV; robot model 200 V
Cordless phones
Objective data sheet
www.DataSheet4U.com
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