TDA7421 Datasheet PDF – AM/FM Tuner for Car Radio

Part Number : TDA7421

Function : AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATION

Package : TQFP 64 Pin

Manufacturers : STMicroelectronics

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TDA7421 datasheet

 

Description :

The TDA7421 is a high performance tuner circuit that integrates AM/FM sections, IF counter and PLL synthesizer on a single chip. Use of BICMOS technology allows the implementation of tuning functions with a minimum of external components.

Features

1. FRONT-END FOR AM/FM RECEIVERS
2. UP-CONVERSION ARCHITECTURE FOR AM
3. HIGH SPEED PLL WITH INLOCK DETECTOR FOR OPTIMIZED RDS Applications
4. SINGLE FREQUENCY REFERENCE FOR AM/FM
5. AM/FM STATION DETECTOR
6. uP-CONTROLLED COMPENSATION OF EXTERNAL COMPONENTS SPREAD
7. ADJUSTABLE AUDIO MUTE

 

Pinout

 

The Automatic Gain Control (AGC) operates on different sensitivities and bandwidths in order to improve sensitivity and dynamic range. I2C bus allows to control selected functions of the tuner (AGC and amplifiers gain, PLL and counters operation modes).

Circuit

Other data sheets within the file : TDA7421N

TDA7421 Datasheet PDF Download

TDA7421 pdf

CSR8811 Datasheet – Bluetooth Single Chip Radio IC – CSR

Part Number : CSR8811

Function : Bluetooth v4.1 single-chip radio and baseband IC

Package : 28-ball 2.57 x 3.21 x 0.6mm 0.5mm pitch WLCSP

Manufacturers : Cambridge Silicon Radio, Qualcomm

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Description

CSR8811’s dual-mode radio enables it to connect to the billions of Bluetooth products already on the market, as well as a new generation of Bluetooth low energy devices.  It supports CSR Wake-on Smart™, enabling the host CPU to be powered down and reducing energy consumption for Bluetooth Smart use cases. When used with CSR Synergy® host software, the CSR8811 provides a system fully qualified to the Bluetooth v4.1 specification for data and voice communications.

 

Pinout

 

Features

1. Fully qualified Bluetooth v4.1 system
2. Full-speed Bluetooth operation with full piconet and scatternet support
3. Class 1 Bluetooth power level supported
4. High-sensitivity Bluetooth receiver
5. On-chip SBC encoding
6. On-chip balun
7. Low-power selectable 1.2 to 3.6V I/O
8. Integrated I/O and core regulators
9. High-speed UART port (up to 4Mbps)
10. PCM/I2S digital audio interface
11. Support for IEEE 802.11 coexistence
12. HFP v1.6 wide-band speech supported on-chip
13. Optimized for use on low-cost PCBs

 

Official Homepage : http://www.csr.com/node/6226

 

CSR8811 Datasheet