- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄365378 > S1T8531 (SAMSUNG SEMICONDUCTOR CO. LTD.) WIDEBAND FM/FSK IF RECEIVER PDF資料下載
參數(shù)資料
| 型號(hào)： | S1T8531 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | WIDEBAND FM/FSK IF RECEIVER |
| 中文描述： | 寬頻帶調(diào)頻/中頻接收機(jī)頻移鍵控 |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 157K |
| 代理商： | S1T8531 |
WIDEBAND FM/FSK IF RECEIVER
S1T8531
7
FUNCTIONAL DESCRIPTION
General
The S1T8531 is a wideband FM / FSK receiver designed for use in analog FM and digital FSK systems such as
900MHz / 2.4GHz ISM band analog / digital cordless phones and wideband data links with data rates up to 2Mbps.
It contains IF amplifier, quadrature detector, baseband filter amplifier and data slicer with sample and hold function.
IF Amplifier
The IF amplifier section is composed of seven differential stage with total gain of 100dB at 10.7MHz. The input
impedance at 10.7MHz is 1.5k
. For 10.7MHz ceramic filter applications, an external 430
resistor must be placed
between IFP(Pin15) and IFN(pin16) to provide the equivalent load impedance of 330
that is required by the filter.
Quadrature Demodulator
The quadrature demodulator requires tank circuit with loaded Q depending on detection bandwidth. Following
figure shows external components required for 10.7MHz operation.
Baseband Filter Buffer Amplifier3
Baseband filter amplifier is a wideband buffer and it can be configured as a second-order sallen-key low pass filter.
Following figure shows the external components required.
Cutoff frequency = 1 / [2
π
*SQRT(R1R2C1C2)]
Quality factor = SQRT(R1R2C1C2) / (R1C2 + R2C2)
The component value of R1 should contain the quadrature detector output resistance.
VCC
QUAD OUT
5
47pF 4.255uH
Rdamp
3
QUAD IN
BUF IN
BUF OUT
R1
R2
C2
C1
Vin
Vout
7
6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S1T8602B | LOW VOLTAGE AUDIO AMPLIFIER |
| S1T8602B01-D0B0 | LOW VOLTAGE AUDIO AMPLIFIER |
| S1T8602B01-S0B0 | LOW VOLTAGE AUDIO AMPLIFIER |
| S1T8603X01 | UNIVERSAL SPEECH NETWORK |
| S1T8603X-S0B0 | Circular Connector; Body Material:Aluminum; Series:PT01; Number of Contacts:24; Connector Shell Size:20; Connecting Termination:Solder; Circular Shell Style:Cable Receptacle; Circular Contact Gender:Socket; Insert Arrangement:20-24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S1T8531X01-S0B0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:WIDEBAND FM/FSK IF RECEIVER |
| S1T8536 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:2.4GHZ-2.5GHZ SINGLE-CHIP RF TRANSCEIVER |
| S1T8536X01-T0R0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:2.4GHZ-2.5GHZ SINGLE-CHIP RF TRANSCEIVER |
| S1T8602B | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LOW VOLTAGE AUDIO AMPLIFIER |
| S1T8602B01-D0B0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LOW VOLTAGE AUDIO AMPLIFIER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。