SA608DK NXP Semiconductors, SA608DK Datasheet

SA608DK

Manufacturer Part Number
SA608DK
Description
Manufacturer
NXP Semiconductors
Datasheet

Specifications of SA608DK

Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Lead Free Status / Rohs Status
Compliant
Philips Semiconductors RF Communications Products
DESCRIPTION
The SA608 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 SA608 is available in 20-lead
dual-in-line plastic, 20-lead SOL
(surface-mounted miniature package) and
20-lead SSOP package.
The SA608 was designed for portable
communication applications and will function
down to 2.7V. The RF section is similar to
the famous NE605. The audio output is
buffered. The RSSI output has an internal
amplifier with the feedback pin accessible.
The SA608 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
ORDERING INFORMATION
November 3, 1992
20-Pin Plastic Dual In-Line Package (DIP)
20-Pin Plastic Small Outline Large (SOL) package (Surface-mount)
20-Pin Plastic Shrink Small Outline Package (SSOP) (Surface-mount)
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 voltage high performance mixer FM IF system
DESCRIPTION
APPLICATIONS
Low external component count; suitable for
crystal/ceramic/LC filters
Excellent sensitivity: 0.31 V into 50
matching network for 12dB SINAD (Signal
to Noise and Distortion ratio) for 1kHz tone,
8kHz deviation with RF at 45MHz and IF at
455kHz
SA608 meets cellular radio specifications
Audio output internal op amp
RSSI output internal op amp
Buffered frequency check output
Internal op amps with rail-to-rail outputs
ESD protection: Human Body Model 2kV
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
Robot Model 200V
2
TEMPERATURE RANGE
-40 to +85 C
-40 to +85 C
-40 to +85 C
PIN CONFIGURATION
QUADRATURE 10
FREQ CHECK/ 9
DECOUPLING
FEEDBACK
LIM OUT (–)
OSC
RF IN+
RF IN–
AUDIO
OSC-
OUT
RSSI
V
RSSI
CC
IN
D, DK and N Packages
IN
ORDER CODE
1
2
3
4
5
6
8
7
SA608DK
SA608N
SA608D
Product specification
853-1679 08108
20 MIXER OUT
19
18 IF AMP IN
17
16 IF AMP OUT
15 GND
14 LIMITER IN
13
12
11
SA608
IF AMP
DECOUPLING
IF AMP
DECOUPLING
LIMITER
DECOUPLING
LIMITER
DECOUPLING
LIMITER
OUT (+)
DWG #
0172D
0408B
1563

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SA608DK Summary of contents

Page 1

... IF AMP IN OSC- IF AMP OUT 4 17 OSC IN DECOUPLING AMP OUT RSSI 6 15 GND LIMITER IN AUDIO LIMITER RSSI 8 13 DECOUPLING FEEDBACK LIMITER 12 FREQ CHECK/ 9 DECOUPLING LIM OUT (–) 11 QUADRATURE 10 LIMITER OUT (+) IN ORDER CODE DWG # SA608N 0408B SA608D 0172D SA608DK 1563 853-1679 08108 ...

Page 2

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system BLOCK DIAGRAM 20 19 MIXER 1 2 ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER V Single supply voltage CC T Storage temperature range STG T Operating ambient temperature range ...

Page 3

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system AC ELECTRICAL CHARACTERISTICS +3V, unless otherwise stated 3.3k; RF level = –45dBm; FM modulation = 1kHz with 8kHz ...

Page 4

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system CIRCUIT DESCRIPTION The SA608 signal processing system suitable for second IF systems with input fre- quency as high as 150MHz. The bandwidth of the ...

Page 5

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 25dB, – 1500/50 PAD 50.5 2430 3880 C24 SW9 20 1 SW1 51.1 SW2 45MHZ MINI–CIRCUIT ZSC2–1B C1 ...

Page 6

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 20 19 MIXER 51pF NPO Ceramic C2 220pF NPO Ceramic C5 100nF +10% Monolithic Ceramic C6 5-30pF NPO Ceramic C7 ...

Page 7

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system RF GENERATOR 45MHz V CC NOTES: 1. C-message: The C-message and de-emphasis filter combination has a peak gain of 10 for accurate measurements. Without the gain, the ...

Page 8

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 2. –55 –35 –15 –8.0 –8.5 –9.0 –9.5 –10.0 –10.5 ...

Page 9

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 8.00 7.75 7.50 7.25 7.00 6.75 6.50 6.25 6.00 5.75 5.50 5.25 5.00 –40 –30 18.00 17.75 17.50 17.25 17.00 16.75 16.50 16.25 16.00 –40 –30 –20 ...

Page 10

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system –10 –20 –30 FUND PRODUCT –40 –50 –60 –70 –80 *50 INPUT –66 –56 Figure 8. Mixer Third Order Intercept and Compression November 3, ...

Page 11

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 5 0 –5 –10 –15 –20 –25 –30 –35 –40 –45 –50 –55 –60 –65 –125 –115 –105 5 0 –5 –10 –20 –25 –30 –35 –40 ...

Page 12

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 5 0 –5 –10 –15 –20 –25 –30 –35 –40 –45 –50 –55 –60 –65 –125 –115 –105 Figure 11. Sensitivity vs RF Level (Temperature 85 C) ...

Page 13

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system 2.400 2.000 1.600 1.200 0.800 0.400 0.000 –95 –85 –75 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 ...

Page 14

Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system V 300 250 200 150 100 –55 –35 –15 ...

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