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Part Number: BU8732AKV
Description: BU8732AKV is a PCM codec IC for digital cellular phones. This includes plenty of analog input / output functions such a...
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BU8732AKV
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General Description
BU8732AKV General Description
BU8732AKV is a PCM codec IC for digital cellular phones. This includes plenty of analog input / output functions such as a 14bit precision linear. / A-LAW codec, a microphone amplifier with two systems, amplifiers for speaker and earphone and a switch transistor for driving a ringer. This IC is the most suitable for both PDC system and CDMA system cellular phones.
BU8732AKV Maximum Ratings
| Parameter | Symbol | Limits | Unit |
| Digital power supply voltage | DVDD | -0.3 to +4.5 | V |
| Analog power supply voltage | RXVDD | -0.3 to +4.5 | V |
| TXVDD | -0.3 to +4.5 | V | |
| Digital pin apply voltage | VTD | DVSS-0.3 to DVDD+0.3 | V |
| Analog pin apply voltage | VTA | RXVSS-0.3 to RXVDD+0.3 | V |
| TXVSS-0.3 to TXVDD+0.3 | V | ||
| Input current | IIN | -10 to +10 | mA |
| Power dissipation | Pd | 400 *1 | mW |
| Storage temperature range | Tstg | -50 to +125 | |
| Operation temperature range | Ta | -30 to +85 |
*1 Drops by 4.0mW per 1°C when used at more than Ta=25°C.
BU8732AKV Features
1) +3V single power supply. (VDD=2.7 to 3.3V)
2) 14bit precision linear / A-LAW codec.
3) Transmission filter of the codec block is in conformity to the ITU-T recommendation G. 714.
4) Built-in PLL circuit for system clock generation.
5) Built-in DSP I/F which is in conformity with PDC and N-CDMA.
6) Arbitrary setting of the clock frequency of PCM data transmission is allowed :
/ A-LAW 64kHz to 2048kHz
Linear 128kHz to 2048kHz
7) Plenty of input / output analog functions :
* Two systems of built-in microphone amplifier (differential input type, single input type)
* Built-in speaker amplifier for receiver (32? BTL type)
* Built-in speaker amplifier for earphone (32? single type)
* Built-in speaker amplifier for REXT of call receiving system (600?)
* Built-in electronic volumes for gain adjustment. (Call-receiving system, call sending system, TONE system)
* Built-in input / output circuit for data signal which allows external connection.
* Pop noise of REXT earphone and receiver outputs at the time of switching on and off the power supply is reduced by means of soft mute.
8) A built-in function to generate DTMF signals and musical scale tones is provided in the tone signal generating block.
9) Built-in switch transistor for driving a ringer.
10) VQFP 48 pin package.
2) 14bit precision linear / A-LAW codec.
3) Transmission filter of the codec block is in conformity to the ITU-T recommendation G. 714.
4) Built-in PLL circuit for system clock generation.
5) Built-in DSP I/F which is in conformity with PDC and N-CDMA.
6) Arbitrary setting of the clock frequency of PCM data transmission is allowed :
/ A-LAW 64kHz to 2048kHz
Linear 128kHz to 2048kHz
7) Plenty of input / output analog functions :
* Two systems of built-in microphone amplifier (differential input type, single input type)
* Built-in speaker amplifier for receiver (32? BTL type)
* Built-in speaker amplifier for earphone (32? single type)
* Built-in speaker amplifier for REXT of call receiving system (600?)
* Built-in electronic volumes for gain adjustment. (Call-receiving system, call sending system, TONE system)
* Built-in input / output circuit for data signal which allows external connection.
* Pop noise of REXT earphone and receiver outputs at the time of switching on and off the power supply is reduced by means of soft mute.
8) A built-in function to generate DTMF signals and musical scale tones is provided in the tone signal generating block.
9) Built-in switch transistor for driving a ringer.
10) VQFP 48 pin package.
BU8732AKV Typical Application
Digital cellular phones with CDMA system, Digital cellular phones with PDC system.
BU8732AKV
PDF/DataSheet Download
- Datasheet: BU8732AKV
- File Size: 163499 KB
- Manufacturer: ROHM [Rohm]
- Click here to Download
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