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BU8730KV Datasheet

  • BU8730KV

  • Linear codec IC for digital cellular telephones

  • 10頁

  • ROHM

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Communication ICs
Linear codec IC for digital cellular tele-
phones
BU8730KV
The BU8730KV is a linear codec IC developed for use with digital cellular telephones. It contains a 14-bit precision linear
codec and various other analog input / output features.
Also, there is a built-in DAI and many tone signal functions making this IC perfect for use with GSM cellular telephones.
FApplications
Digital cellular telephones
FFeatures
1)
)3V
single power supply (V
DD
= 2.7V to 3.3V).
2) Low current consumption of 8.2mA (typ.) when fully
operating and 20
碌A(chǔ)
(max.) when powered down
(V
DD
= 3V).
3) Built-in 14-bit precision linear codec.
4) Transmission filter for the codec unit conforms to
ITU-T recommendation G.714.
5) DTMF signal, GSM triple tone, and scale tone signal
generator functions are built into the tone signal gen-
erator block.
6) Signal generator and output level adjustment circuits
are built in with the sounder output functions.
7) Built-in PLL circuit for system clock generation.
FAbsolute
maximum ratings (Ta = 25_C)
8) Analog input / output functions:
S
Built-in mic amplifier with gain switching capabili-
ties.
S
Data signal I / O circuit allows for connection to ex-
ternal devices.
S
Receiver output, ringer output, and EXT output are
soft mute compatible.
9) Internal DAI (digital audio interface) with GSM11.10
support.
10) Internal DSP interface circuit supports multiple DSP
formats.
11) VQFP 48-pin package.
621

BU8730KV 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • 接口 - 電信

  • -

  • 線性 CODEC

  • 串行

  • 1

  • 2.7 V ~ 3.3 V

  • -

  • 400mW

  • -50°C ~ 125°C

  • 表面貼裝

  • 48-LQFP

  • 48-TQFP（7x7）

  • 托盤

  • DTMF 發(fā)生器，GSM 三音音調(diào)發(fā)生器，音階音調(diào)信號(hào)發(fā)生器

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