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Philips Semiconductors Product specification
SA606Low-voltage high performance mixer FM IF system
2
1997 Nov 07 853-1576 18665
DESCRIPTION
The SA606 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 SA606 is available in 20-lead SOL
(surface-mounted small outline large package) and 20-lead SSOP
(shrink small outline package).
The SA606 was designed for portable communication applications
and will function down to 2.7V. The RF section is similar to the
famous SA605. The audio and RSSI outputs have amplifiers with
access to the feedback path. This enables the designer to level
adjust the outputs or add filtering.
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 with RF
at 45MHz and IF at 455kHz
• SA606 meets cellular radio specifications
• Audio output internal op amp
• RSSI output internal op amp
• Internal op amps with rail-to-rail outputs
PIN CONFIGURATION
RF IN+
RF IN- DECOUPLING
OSC
OUT
OSC
IN
RSSI
MIXER OUT
IF AMP IN
IF AMP OUT
GND
LIMITER IN
LIMITER OUT
V
CC
D and DK Packages
AUDIO FEEDBACK
RSSI FEEDBACK
QUADRATURE IN
IF AMP DECOUPLING
AUDIO
IF AMP DECOUPLING
LIMITER DECOUPLING
LIMITER DECOUPLING
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SR00347
Figure 1. Pin Configuration
• ESD protection: Human Body Model 2kV
Robot Model 200V
APPLICATIONS
• Portable cellular radio FM IF
• Cordless phones
• Wireless systems
• RF level meter
• Spectrum analyzer
• Instrumentation
• FSK and ASK data receivers
• Log amps
• Portable high performance communication receiver
• Single conversion VHF receivers
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
20-Pin Plastic Small Outline Large (SOL) package (Surface-mount) -40 to +85°C SA606D SOT163-1
20-Pin Plastic Shrink Small Outline Package (SSOP) (Surface-mount) -40 to +85°C SA606DK SOT266-1
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNITS
V
CC
Single supply voltage 7 V
T
STG
Storage temperature range -65 to +150 °C
T
A
Operating ambient temperature range -40 to +85 °C
θ
JA
Thermal impedance D package
DK package
90
117
°C/W