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參數(shù)資料
| 型號： | TDA7528 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-64 |
| 文件頁數(shù)： | 64/65頁 |
| 文件大?。?/td> | 610K |
| 代理商： | TDA7528 |
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Product description
TDA7528
Doc ID 13141 Rev 6
1
Product description
1.1
Summary
The TDA7528 is a front-end module for use in car radio receivers on the 50 kHz - 108 MHz
and 161 MHz - 163 MHz frequency bands. Its field of use includes all the current radio
broadcast services worldwide on long, medium and short wave, CB radio, FM radio on the
OIRT, Japanese and ITU frequency bands and the American weather band. Both analogue
AM and FM and digital standards such as DRM and HD radio (IBOC) can be handled.
The receiver is designed as a single super-heterodyne with an intermediate frequency of
10.7 MHz. The IF signal is digitized, filtered and demodulated in the appropriate backend IC.
The combination of two independently-operating front-ends with the backend makes phase
diversity operation possible or the simultaneous reception of two freely-selectable
frequencies with any combination of types of demodulation.
The TDA7528 IMR mixer has separate input- and output-stages for AM frequency bands up
to 30 MHz (narrowband services) and for FM frequencies above 30 MHz (broadband
signals).
As an option, the AM path can be operated with an integrated preamplifier stage and an
integrated low-pass filter to reduce interfering input signals on the IF and image frequencies.
The mixer has two FM inputs with different properties. The more sensitive (lower noise)
input is intended for the use of a passive pre-selection stage and the high level, advanced
IP3 input for an active preamplifier stage. The mixer outputs have a single ended low
impedance design to drive one or two IF filters with different bandwidths. A switchable gain
IF amplifier, independent IF AGC and an integrated anti-aliasing stage drive the IF A/D
converter of the backend. Programmable RF AGCs to actuate adjustable preamplifier
stages and two D/A converters for tuning external filter stages complete the reception path.
Two fully-integrated VCOs are included in the TDA7528, oscillating in a range around
3.7 GHz and 4.7 GHz respectively. The output signal of the selected VCO drives a
programmable divider generating the LO signal for the mixer stage. The PLL, integrated with
the exception of the loop filter, facilitates reception on all the above-mentioned frequencies,
rapid frequency changes in the standard tuning steps of 50 kHz for FM, 9 or 10 kHz for LW
and MW and 5 kHz for SW. The smallest available tuning steps are 12.5 kHz for FM and
1 kHz for all AM bands.
The TDA7528 is controlled by a serial command interface, switchable between SPI and I2C
protocol. The external reference source is typically 74.1 MHz. However, the TDA7528 also
has its own reference oscillator.
All the necessary calibration steps can be carried out electronically during production. An
integrated temperature sensor facilitates the adaptation of various parameters during
operation, like IF gain or AGC threshold.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7528TR | 功能描述:音頻放大器 AM/FM car radio Front-End IF Signal RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7529 | 功能描述:調(diào)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(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| 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(diào)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(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| TDA7535 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Delta/sigma cascade 20 bit stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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 |
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