SA607 Datasheet, PDF (2/19 Pages) NXP Semiconductors – Low-voltage high performance mixer FM IF system

Philips Semiconductors
Low voltage high performance mixer FM IF system
Product specification
SA607
DESCRIPTION
The SA607 is a low voltage high performance monolithic FM IF
system incorporating a mixer/oscillator, two limiting intermediate
frequency amplifiers, quadrature detector, logarithmic received
signal strength indicator (RSSI), voltage regulator and audio and
RSSI op amps. The SA607 is available in 20-lead SOL
(surface-mounted miniature package) and 20-lead SSOP package.
The SA607 was designed for portable communication applications
and will function down to 2.7V. The RF section is similar to the
famous SA605. The audio output has an internal amplifier with the
feedback pin accessible. The RSSI output is buffered. The SA607
also has an extra limiter output. This signal is buffered from the
output of the limiter and can be used to perform frequency check.
This is accomplished by comparing a reference frequency with the
frequency check signal using a comparator to a varactor or PLL at
the oscillator inputs.
FEATURES
• Low power consumption: 3.5mA typical at 3V
• Mixer input to >150MHz
• Mixer conversion power gain of 17dB at 45MHz
• XTAL oscillator effective to 150MHz (L.C. oscillator or external
oscillator can be used at higher frequencies)
• 102dB of IF Amp/Limiter gain
• 2MHz limiter small signal bandwidth
• Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a 90dB dynamic range
• Low external component count; suitable for crystal/ceramic/LC
filters
• Excellent sensitivity: 0.31µV into 50Ω matching network for 12dB
SINAD (Signal to Noise and Distortion ratio) for 1kHz tone, 8kHz
deviation with RF at 45MHz and IF at 455kHz
• SA607 meets cellular radio specifications
• Audio output internal op amp
• RSSI output internal op amp
PIN CONFIGURATION
D and DK Packages
RF IN+ 1
RF IN– DECOUPLING ₂
20 MIXER OUT
19 ^{IF AMP DECOUPLING}
OSC_OUT ³
OSC_IN ⁴
RSSI 5
V_CC ⁶
AUDIO FEEDBACK 7
18 IF AMP IN
17 _{IF AMP DECOUPLING}
16 IF AMP OUT
15 GND
14 LIMITER IN
AUDIO 8
13 LIMITER DECOUPLING
FREQ CHECK/LIM OUT (–) 9
12 LIMITER DECOUPLING
QUADRATURE IN ¹⁰
11 _{LIM OUT(+)}
Figure 1. Pin Configuration
• Buffered frequency check output
• Internal op amps with rail-to-rail outputs
• ESD protection: Human Body Model 2kV
Robot Model 200V
SR00387
APPLICATIONS
• Portable cellular radio FM IF
• Cordless phones
• Narrow band cellular applications (NAMPS/NTACS)
• RF level meter
• Spectrum analyzer
• Instrumentation
• FSK and ASK data receivers
• Log amps
• Portable high performance communication receivers
• Single conversion VHF receivers
• Wireless systems
ORDERING INFORMATION
DESCRIPTION
20-Pin Plastic Small Outline Large (SOL) package (Surface-mount)
20-Pin Plastic Shirnk Small Outline Package (SSOP) (Surface-mount)
TEMPERATURE RANGE
-40 to +85°C
-40 to +85°C
ORDER CODE
SA607D
SA607DK
DWG #
SOT163-1
SOT266-1
1997 Nov 07
2
853-1677 18665