參數(shù)資料
型號(hào): TAS3002
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: QFP-48
文件頁(yè)數(shù): 33/54頁(yè)
文件大?。?/td> 266K
代理商: TAS3002
75
Table 71. GPI Terminal Programming
GPI5
GPI4
GPI3
GPI2
GPI1
GPI0
VOL_UP, +1 dB
x
VOL_DN, 1 dB
x
BASS_UP, +1 dB
x
BASS_DN, 1 dB
x
TREB_UP, +1 dB
x
TREB_DN, 1 dB
x
Shift 1
x
Mute
x
EQ1
x
EQ2
x
EQ3
x
EQ4
x
EQ5
x
Shift 2
x
NOTE: x = Logic low
Initially (after reset), the TAS3002 GPI is set to control volume, bass, and treble. Simultaneously setting GPI bits 1
and 5 low for 1 second changes the function of the GPI terminals to control mute and equalization.
To return to volume, bass, and treble control, simultaneously set GPI terminals 2 and 3 low for 1 second.
When a GPI terminal is activated, the TAS3002 device echoes its function over I2C to a TAS3001 device mapped
to address 6Ah. Therefore, a system with two audio equalization chips can be implemented without the need for a
microcontroller.
7.6.2
GPI Architecture
The GPI provides simple but flexible input port to activate the input parameters. Each terminal input is an active logic
low.
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