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SA627 PDF даташит

Спецификация SA627 изготовлена ​​​​«Philips» и имеет функцию, называемую «High performance low power FM IF system with high-speed RSSI».

Детали детали

Номер произв SA627
Описание High performance low power FM IF system with high-speed RSSI
Производители Philips
логотип Philips логотип 

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SA627 Даташит, Описание, Даташиты
RF COMMUNICATIONS PRODUCTS
SA627
High performance low power FM IF
system with high-speed RSSI
Product specification
Replaces data of November 3, 1992
RF Communications Handbook
1997 Nov 07
Philips Semiconductors









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SA627 Даташит, Описание, Даташиты
Philips Semiconductors
High performance low power mixer FM IF system
with high-speed RSSI
Product specification
SA627
DESCRIPTION
The SA627 has faster RSSI rise and fall times. The SA627 is a high
performance monolithic low-power FM IF system incorporating a
mixer/oscillator, two limiting intermediate frequency amplifiers,
quadrature detector, muting, logarithmic received signal strength
indicator (RSSI) with fast rise and fall time, voltage regulator and
frequency check/limiter out (–). The SA627 also has an extra limiter
output. This signal is buffered from the output of the limiter and
provides a negative (–) limiter output. This can be used to provide a
frequency check function. The SA627 is available in 20-lead SOL
(surface-mounted miniature package) and 20-lead SSOP (shrink
small outline package).
FEATURES
Fast RSSI rise and fall times
Low power consumption: 5.8mA typical at 6V
Mixer input to >500MHz
Mixer conversion power gain of 13dB at 45MHz
Mixer noise figure of 4.6dB at 45MHz
XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz local
oscillator can be injected)
102dB of IF Amp/Limiter gain
25MHz limiter small signal bandwidth
Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 90dB
Audio output - mutable
Low external component count; suitable for crystal/ceramic/LC
filters
Excellent sensitivity: 0.22µV into 50matching network for 12dB
SINAD (Signal to Noise and Distortion ratio) for 1kHz tone, 8kHz
deviation with RF at 45MHz and IF at 455kHz
SA627 meets cellular radio specifications
ESD hardened
PIN CONFIGURATION
D and DK Packages
RFIN 1
RF BYPASS 2
XTAL OSC 3
XTAL OSC 4
MUTEIN 5
VCC 6
RSSIOUT 7
MUTED AUDIO OUT 8
QUADRATURE IN 9
FREQ CHECK/ LIM OUT (–) 10
20 MIXER OUT
19 IF AMP DECOUPLING
18 IF AMP IN
17 IF AMP DECOUPLING
16 IF AMP OUT
15 GND
14 LIMITER IN
13 LIMITER DECOUPLING
12 LIMITER DECOUPLING
11 LIMITER OUT (+)
Figure 1. Pin Configuration
SR00481
APPLICATIONS
Digital cellular base stations
High performance communications receivers
Single conversion VHF/UHF receivers
SCA receivers
RF level meter
Spectrum analyzer
Instrumentation
FSK and ASK data receivers
Log amps
Wideband low current amplification
Digital cordless telephones
ORDERING INFORMATION
DESCRIPTION
20-Pin Plastic Small Outline Large (SOL) package (Surface-mount)
20-Pin Plastic Shrink Small Outline Package (SSOP) (Surface-mount)
TEMPERATURE RANGE
-40 to +85°C
-40 to +85°C
ORDER CODE
SA627D
SA627DK
DWG #
SOT163-1
SOT266-1
1997 Nov 07
2 853-1649 18664









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SA627 Даташит, Описание, Даташиты
Philips Semiconductors
High performance low power mixer FM IF system
with high-speed RSSI
Product specification
SA627
BLOCK DIAGRAM
20 19 18 17 16 15 14 13 12 11
IF AMP
700
MIXER
OSCILLATOR
LIMITER
RSSI
QUAD
DETECTOR
MUTE
SWITCH
1 2 3 4 5 6 7 8 9 10
Figure 2. Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC
TSTG
TA
Single supply voltage
Storage temperature range
Operating ambient temperature range SA627
θJA Thermal impedance
D package
DK package
RATING
9
-65 to +150
-40 to +85
90
117
SR00482
UNITS
V
°C
°C
°C/W
°C/W
DC ELECTRICAL CHARACTERISTICS
VCC = +6V, TA = 25°C; unless otherwise stated.
SYMBOL
PARAMETER
VCC Power supply voltage range
ICC DC current drain
Mute switch input threshold
(ON)
(OFF)
TEST CONDITIONS
LIMITS
SA627
UNITS
MIN TYP MAX
4.5 8.0 V
4.55 5.8 6.75 mA
1.7 V
1.0 V
1997 Nov 07
3










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