- 您現在的位置：買賣IC網 > PDF目錄370286 > FX118 Frequency Inverter? PDF資料下載
參數資料
| 型號： | FX118 |
| 英文描述： | Frequency Inverter? |
| 中文描述： | 變頻器？ |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 114K |
| 代理商： | FX118 |
1
Publication D/118/3 July 1994
CML Semiconductor Products
PRODUCT INFORMATION
Duplex Frequency Inverter
for Cordless Telephones
FX118
Features/Applications
Frequency Inversion Scrambling
Full-Duplex Operation
High Baseband and Carrier
Rejection
Audio Lowpass and Bandpass
Filtering On-Chip
Xtal Oscillator Stabilty
Low Power Requirement
(3.0 Volt Minimum)
Cordless Telephones
Base and Handheld Applications
Input Gain Adjustment
Plastic DIL and S.O.I.C. Package
Styles
FX118
C1 AMP OUT
C1 IN
LPF(1) OUT
B MOD(1) IN
C1 OUT
LPF(1)
INPUT AMP
BAL MOD (1)
BPF(1)
LPF(2) OUT
B MOD(2) IN
C2 AMP OUT
C2 IN
LPF(2)
BAL MOD (2)
BPF(2)
C2 OUT
CLOCKS
and
LOGIC
XTAL/CLOCK
CARRIER
3.3kHz
FILTER CLOCKS
111kHz
V
DD
V
SS
V
BIAS
INPUT AMP
V
BIAS
V
BIAS
XTAL
CHANNEL 1 (C1)
CHANNEL 2 (C2)
+0.5dB
-4.0dB
+4.0dB
+0.5dB
-4.0dB
+4.0dB
Fig.1 FX118 Duplex Frequency Inverter
Brief Description
The FX118 is a low-power, full-duplex frequency
inverter available to provide voice privacy for cordless
telephone systems by mixing the incoming audio with an
internally produced carrier frequency (3.3kHz).
This chip contains two completely separate audio
channels (C1 and C2) each comprising a “component-
adjustable” input amplifier, a 10th-order lowpass filter, a
balanced modulator and a 14th-order bandpass filter
output.
The on-chip modulation process has the properties of
high baseband and carrier frequency rejection which
when combined with high-order output filtering,
produces a high-quality recovered voiceband audio.
The frequency stability of the FX118 is achieved by an
on-chip oscillator employing an external 4.433619MHz
Xtal or clock input to produce the common carrier
frequency and the sampling clocks for the switched
capacitor low and bandpass filters.
This microcircuit has a low power requirement of 3.0
volts (min.) and is encapsulated in either 16-pin DIL or
small outline SMD (S.O.I.C.) plastic packages both of
which are of a physical size suitable for either base or
handset type telephone instruments as well as battery-
portable and mobile communications systems.
相關PDF資料 |
PDF描述 |
|---|---|
| FX118D4 | Analog Miscellaneous |
| FX118DW | Telecommunication IC |
| FX118P | Telecommunication IC |
| FX118P3 | Analog Miscellaneous |
| FX2030 | Selcall Encoder/Decoder Hybrid |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FX118D4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Miscellaneous |
| FX118DW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| FX118P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| FX118P3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Miscellaneous |
| FX1-192P-1.27DSA | 功能描述:CONN HEADER 192POS 1.27MM STR AU RoHS:否 類別:連接器，互連式 >> 板對板 - 陣列，邊緣類型，包廂 系列:FX1 標準包裝:3,000 系列:SlimStack™ 502396 連接器類型:插頭，外罩觸點 位置數:100 間距:0.016"（0.40mm） 行數:2 安裝類型:表面貼裝 特點:固定焊尾 觸點表面涂層:金 觸點涂層厚度:8µin（0.20µm） 包裝:帶卷 (TR) 配接層疊高度:2.5mm 板上方高度:0.084"（2.13mm） 其它名稱:502396-1010 |
發布緊急采購，3分鐘左右您將得到回復。