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参数资料
| 型号： | TDA7427 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 200 MHz, PDIP20 |
| 封装： | DIP-20 |
| 文件页数： | 1/21页 |
| 文件大小： | 350K |
| 代理商： | TDA7427 |
TDA7427
AM-FM RADIO FREQUENCY SYNTHESIZER
AND IF COUNTER
ON-CHIP REFERENCE OSCILLATOR AND
PROGRAMMABLE IF COUNTER
VHF INPUT AND PRECOUNTER FOR FRE-
QUENCIES UP TO 290MHz (SUITABLE FOR
DAB APPLICATION)
HF INPUT FOR FREQUENCIES UP TO
64MHz (SHORT WAVE BAND)
IN-LOCK DETECTOR FOR SEARCH/STOP
STATION FUNCTION
STAND-BY MODE FOR LOW POWER CON-
SUMPTION
HIGH
CURRENT
SOURCE
FOR
0.5ms
LOCK-IN TIME
DIGITAL PORT EXTENSION WITH TWO
OUTPUTS FOR FLEXIBILITY IN APPLICA-
TION
FULLY PROGRAMMABLE BY I
2C BUS
DESCRIPTION
The TDA7427 is a PLL frequency synthesizer
with an additional IF counting system that per-
forms all the functions needed in a complete PLL
radio tuning system for conventional and high
speed RDS tuners. The device has dedicated out-
puts for IN-LOCK detection and Search/Stop sta-
tion.
November 1999
SWITCH
AM/FM
PRECOUNTER
:32/33
5 BIT PROG.
CNT
11-21 BIT PROG CNT
SWITCH
SWM/DIR
11 BIT PROG
CNT
INLOCK
DETECTOR
PHASE
COMP
REF
OSCILLATOR
CHARGE
PUMP
-
+
SWITCH
LP1/LP2
14 BIT PROG
CNT
TIMER
CONTROL
I2C BUS
INTERFACE
TEST
LOGIC
PORT EXTENSION
FM_IN
AM_IN
OSCIN
SCL
SDA
IF_AM
IF_FM
VDD2
GNDan/GNDdig
VREF
LPOUT
VDD1
LP_FM
LP_AM
D95AU418B
SWITCH
SWM/DIR
16 BIT PROG
CNT
POWER ON
RESET
DOUT3
VDD1
OSCOUT
SSTOP
LP_HC
DOUT1/INLOCK
16
17
5
6
8
9
19
15
10
11
7
12
18
4
20
1
3
2
13
HFREF
14
BLOCK DIAGRAM
ORDERING NUMBERS: TDA7427(DIP20)
TDA7427D (SO20)
DIP20
SO20
1/21
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7427A | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AD1 | 功能描述:音频 DSP AM/FM Radio Freq Syn RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7427AD1TR | 功能描述:锁相环 - PLL AM/FM Radio Freq Syn RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
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