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| 型号： | TEA5777HL/N2,118 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP32 |
| 封装： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-358-1, LQFP-32 |
| 文件页数： | 47/47页 |
| 文件大小： | 219K |
| 代理商： | TEA5777HL/N2,118 |
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TEA5777_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 11 April 2006
9 of 47
Philips Semiconductors
TEA5777
Low-power AM/FM stereo radio for handheld applications
8.
Functional description
The TEA5777 is an integrated AM/FM stereo radio circuit with very high integration level
including digital tuning and control functions.
The IC communicates with a microcontroller via the I2C-bus or the 3-wire bus interface
and provides the following functions:
AM single conversion receiver with integrated image rejection for fIF =21kHz
FM single conversion receiver with integrated image rejection for fIF = 133.333 kHz or
150 kHz (software selectable)
FM stereo decoder with signal dependent stereo effect
The AM circuit incorporates:
Integrated antenna tuning function
Integrated I/Q IF channel
On-chip image reject mixer structure
A fully integrated AM VCO with fVCO = 8 × (fRF + fIF)
Software selectable high-side or low-side oscillator injection
A fully integrated AM detector
The FM circuit incorporates:
Integrated I/Q IF channel
On-chip image reject mixer structure
External RF VCO running at fVCO = 2 × (fRF ± fIF)
Software selectable high-side or low-side oscillator injection
A fully integrated demodulator
Japan band possibility
The stereo decoder incorporates:
A 1.52 MHz VCO, that needs no external adjustment, which can lock to the 19 kHz
stereo pilot tone by means of a PLL system; the sub-carrier frequencies of 19 kHz,
38 kHz and others are regenerated from the VCO output
Integrated 50
s or 75 s (switchable) de-emphasis
Signal Dependent Stereo (SDS) function can be switched off via the bus interface
Stereo decoder can be switched off in order to save power
Tuning function:
The tuning synthesizer is on-chip with the radio and utilizes a PLL system for tuning
and an IF counter has been added for search-stop detection
Tuning to a wanted input signal can be achieved by preset tuning or search tuning. For
the latter the IC has a built-in auto search function which reduces the load of the
microcontroller
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA5777HL-T | 功能描述:调谐器 AM/FM STEREO RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| TEA5777HN | 功能描述:调谐器 AM/FM STEREO RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| TEA5777HN/N2,518 | 功能描述:调谐器 AM/FM STEREO RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| TEA5777HN/N2,557 | 功能描述:调谐器 AM/FM STEREO RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| TEA5777HN-T | 功能描述:调谐器 AM/FM STEREO RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
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