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參數資料
| 型號： | TDA7529 |
| 廠商： | 意法半導體 |
| 英文描述： | RF front-end for AM/FM DSP car-radio with IF sampling |
| 中文描述： | RF前端的調幅/調頻DSP的汽車無線電IF采樣 |
| 文件頁數： | 13/60頁 |
| 文件大?。?/td> | 437K |
| 代理商： | TDA7529 |
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TDA7529
Function description
13/60
Figure 4.
Positive/negative current diagram
3.
Constant current mode: the output current can be set to 2 mA source current. The AGC
detector is in power -down mode and only the PIN diode driver is active.
Voltage and current mode with hand-over: the Vthr level is programmable with 6 bit in
the range of 0.2V to 2.56V. The voltage Vthr is the internal reference voltage of an
external cascode transistor emitter feedback loop.
4.
Figure 5.
Voltage and current mode with hand-over
The voltage output swing is comprised between 0V and 3.3V (VDD).
The microcontroller can read the voltage at the AGC capacitor via the serial control
interface.
3.3
AM RF-AGC
The AM AGC system is controlled by an average detector. The time constant of the AM RF-
AGC is defined by an external capacitor connected to TCAM and programmable internal
currents with symmetrical attack/decay behavior.
The AM RF-AGC has two output pins to drive one PIN diode attenuator and the external
preamplifier gain control.
The AGC outputs can be programmed to the same modes as the FM RF-AGC with the
exception of pos/neg current.
The microcontroller can read the voltage at the AGC capacitor via the serial control
interface.
1.65V
Iout
15mA
f(e) current
AC00041
Iout Vout
Vthr
Vthr
AC00042
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA7529_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RF front-end for AM/FM DSP car-radio with IF sampling |
| TDA7529TR | 功能描述:調諧器 RF front-end AM/FM DSP car-radio IF Sig RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數: 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| TDA7535 | 功能描述:數模轉換器- DAC Delta/sigma cascade 20 bit stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| TDA7535_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DELTA/SIGMA CASCADE 20 BIT STEREO DAC |
| TDA7535013TR | 功能描述:音頻數/模轉換器 IC 20-bit Stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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