參數(shù)資料
型號(hào)： SA624
廠商： NXP Semiconductors N.V.
英文描述： High performance low power FM IF system with high-speed RSSI
中文描述： IF系統(tǒng)的高性能與低功耗調(diào)頻高速的RSSI
文件頁(yè)數(shù)： 2/15頁(yè)
文件大?。?/td> 161K
代理商： SA624
Philips Semiconductors
Product specification
SA624
High performance low power FM IF system with
high-speed RSSI
2
1997 Nov 07
853-1647 18664
DESCRIPTION
The SA624 is pin-to-pin compatible with the SA604A, but has faster
RSSI rise and fall time. The SA624 is an improved monolithic
low-power FM IF system incorporating two limiting intermediate
frequency amplifiers, quadrature detector, muting, logarithmic
received signal strength indicator, and voltage regulator. The SA624
features higher IF bandwidth (25MHz) and temperature
compensated RSSI and limiters permitting higher performance
application compared with the SA604. The SA624 is available in
16-lead SO (surface-mounted miniature) package.
FEATURES
Low power consumption: 3.4mA typical
Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 90dB
Fast RSSI rise and fall time
Two audio outputs - muted and unmuted
Low external component count; suitable for crystal/ceramic filters
Excellent sensitivity: 1.5
μ
V across input pins (0.22
μ
V into 50
matching network) for 12dB SINAD (Signal to Noise and Distortion
ratio) at 455kHz
SA624 meets cellular radio specifications
PIN CONFIGURATION
D Package
IF AMP DECOUPLING
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
GND
MUTE INPUT
RSSI OUTPUT
MUTE AUDIO OUTPUT
UNMUTE AUDIO OUTPUT
QUADRATURE INPUT
IF AMP INPUT
IF AMP DECOUPLING
IF AMP OUTPUT
GND
LIMITER INPUT
LIMITER DECOUPLING
LIMITER DECOUPLING
LIMITER
V
CC
SR00440
Figure 1. Pin Configuration
APPLICATIONS
Digital cellular base station
Cellular radio FM IF
High performance communications receivers
Intermediate frequency amplification and detection up to 25MHz
RF level meter
Spectrum analyzer
Instrumentation
FSK and ASK data receivers
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
16-Pin Plastic Small Outline (SO) package (Surface-mount)
-40 to +85
°
C
SA624D
SOT109-1
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNITS
V
CC
T
STG
T
A
θ
JA
Single supply voltage
9
V
Storage temperature range
-65 to +150
°
C
°
C
Operating ambient temperature range SA624
-40 to +85
Thermal impedance
D package
90
°
C/W
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