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PDF BU8733KV Data sheet ( Hoja de datos )
| Número de pieza | BU8733KV | |
| Descripción | PCM codec IC for digital cellular telephones | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Communication ICs
PCM codec IC for digital cellular
telephones
BU8733KV
The BU8733KV is a PCM codec IC developed for use with digital cellular telephones. The BU8733KV contains analog
input / output features such as a 14-bit linear precision, µ / A-LAW codec, mic and speaker amplifiers, and a switching
transistor for the ringer drive. Also, there is a built-in DSP interface circuit for support of multiple DSP formats making
this IC perfect for use with PDC cellular telephones.
FApplications
Digital cellular telephones
FFeatures
1) )3V single power supply (VDD = 2.7V to 3.3V).
2) Built-in 14-bit precision linear, µ / A-LAW codec.
3) Transmission filter for the codec unit conforms to
ITU-T recommendations.
4) Built-in PLL circuit for system clock generation.
5) Tone signal generator contains DTMF signal, scale
tone, and variable tone functions.
6) Analog input / output functions:
S Built-in mic amplifier.
S Built-in receiver speaker amplifier (32Ω BTL type).
S Built-in attenuator for wide gain adjustment range.
S Data signal I / O circuit allows for connection to ex-
ternal devices.
S For the external output and receiver output, soft-
mute function reduces pop noise when the power
is turned on and off.
7) Internal switching transistor for ringer drive.
8) Internal DSP interface circuit supports multiple DSP
formats.
FAbsolute maximum ratings (Ta = 25_C)
599
1 page  
Communication ICs
BU8733KV
FElectrical characteristics(unless otherwise noted, Ta = 25_C, DVDD = RXVDD = TXVDD = 3.0V, FSYNC = 8kHz,
gain of each attenuator = 0dB)
603
5 Page 
Communication ICs
FExternal dimensions (Units: mm)
BU8733KV
609
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet BU8733KV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BU8733KV | PCM codec IC for digital cellular telephones | ROHM Semiconductor |
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