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參數(shù)資料
| 型號： | SA639 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Low voltage mixer FM IF system with filter amplifier and data switch |
| 中文描述： | 低電壓中頻濾波放大器和數(shù)據(jù)系統(tǒng)，混頻器調(diào)頻開關(guān) |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 226K |
| 代理商： | SA639 |
Philips Semiconductors
Product specification
SA639
Low voltage mixer FM IF system with filter amplifier
and data switch
2
1998 Feb 10
853-1792
18944
DESCRIPTION
The SA639 is a low-voltage high performance monolithic FM IF
system with high-speed RSSI incorporating a mixer/oscillator, two
wideband limiting intermediate frequency amplifiers, quadrature
detector, logarithmic received signal strength indicator (RSSI), fast
RSSI op amps, voltage regulator, wideband data output, post
detection filter amplifier and data switch. The SA639 is available in
24-lead TSSOP (Thin shrink small outline package).
The SA639 was designed for high bandwidth portable
communication applications and will function down to 2.7V. The RF
section is similar to the famous NE605. The data output provides a
minimum bandwidth of 1MHz to demodulate wideband data. The
RSSI output is amplified and has access to the feedback pin. This
enables the designer to level adjust the outputs or add filtering.
The post-detection amplifier may be used to realize a low pass filter
function. A programmable data switch routes a portion of the data
signal to an external integration circuit that generates a data
comparator reference voltage.
SA639 incorporates a power down mode which powers down the
device when Pin 8 is high. Power down logic levels are CMOS and
TTL compatible with high input impedance.
APPLICATIONS
DECT (Digital European Cordless Telephone)
FSK and ASK data receivers
FEATURES
V
CC
= 2.7 to 5.5V
Low power consumption: 8.6mA typ at 3V
Wideband data output (1MHz min.)
Fast RSSI rise and fall times
Mixer input to >500MHz
Mixer conversion power gain of 9.2dB and noise figure of 11dB at
110MHz
PIN CONFIGURATION
RF
IN
RF BYPASS
XTAL OSC (EMITTER)
XTAL OSC (BASE)
IF AMP DECOUPLING
IF AMP OUT
GND
LIMITER IN
SWITCH OUT
POWER DOWN CONTROL
POSTAMP IN
POSTAMP OUT
SWITCH CONTROL
MIXER OUT
IF AMP IN
LIMITER DECOUPLING
LIMITER DECOUPLING
LIMITER OUT
QUADRATURE IN
V
CC
RSSI FEEDBACK
RSSI OUT
DATA OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
24
23
22
21
20
19
18
17
16
15
IF AMP DECOUPLING
SR00030
Figure 1. Pin Configuration
XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz local
oscillator can be injected)
92dB of IF Amp/Limiter power gain
25MHz limiter small signal bandwidth
Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 80dB
RSSI output internal op amp
Post detection amplifier for filtering
Programmable data switch
Excellent sensitivity: 2.24
μ
V into 50
matching network for 10dB
SNR (Signal to Noise Ratio) with RF at 110MHz and IF at 9.8MHz
ESD hardened
Power down mode
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
-40 to +85
°
C
ORDER CODE
DWG #
SOT-355
24-Pin Plastic TSSOP (Thin Shrink Small Outline Package)
SA639DH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA6392 | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:4CHANNEL BTL DRIVER FOR CD PLAYERS |
| SA639DH | 制造商:MAJOR 功能描述: 制造商:NXP Semiconductors 功能描述:FM DEMODULATOR, 24 Pin, Plastic, TSSOP |
| SA639DH,512 | 功能描述:射頻混合器 LV MIX FM IF SYS W/FILT AMP&DS RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| SA639DH,518 | 功能描述:射頻混合器 LV MIX FM IF SYS W/FILT AMP&DS RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| SA639DH/01 | 功能描述:射頻混合器 LV MIX FM IF SYS W/FILT AMP AND DS RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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