參數資料
型號: TSC2301PAGR
廠商: Texas Instruments, Inc.
元件分類: Codec
英文描述: PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
中文描述: 可編程觸摸屏控制器,立體聲編解碼器
文件頁數: 80/92頁
文件大?。?/td> 1161K
代理商: TSC2301PAGR
www.ti.com
TSC2301
SLAS371D–SEPTEMBER 2002–REVISED AUGUST 2004
Bits [6:0] — BPVR6- BPVR0
Right Channel Audio Bypass Path Volume Control. These 7 bits control the gain setting of the right channel
bypass path volume control PGA. This volume control can be programmed from -35.5 dB to +12 dB in 0.5-dB
steps. Full volume (+12 dB) corresponds to a setting of 7Fh. Unity gain (0 dB) corresponds to 67h. Full
attenuation (-35.5 dB) corresponds to 20h. Any value lower than 20h engages the mute function described
above. The default volume setting is 0 dB.
BPVR[6:0] = 1100111 (103d) = 0 dB (default)
BPVR[6:0] = 1111111 (127d) = +12 dB (Max)
BPVR[6:0] = 0100000 (032d) = -35.5 dB (Min)
BPVR[6:0] = 0d-31d = mute
KEYCLICK CONTROL REGISTER (Page 2, Address 04H)
The Keyclick Control Register of the TSC2301 controls the setup of the internal keyclick sound generator. This
register is used to initiate and set the frequency, amplitude, and duration of the internally generated keyclick
sound. This register also controls the input to the differential mono output, and the soft-stepping function of the
TSC2301 volume controls.
The keyclick control register is formatted as follows:
Bit 15
MSB
KEYST
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LSB
SSTE
P
KCAM
2
KCA
M1
KCAM
0
RESV
KCFR KCFR KCFR KCLN3
2
1
KCLN2
KCLN1
KCLN0
RESV
MONS
SSRT
E
0
Bit 15 — KEYST
Keyclick Start. This bit initiates a keyclick sound.
Table 44. Keyclick Start
KEYST
0
1
Description
No keyclick sound (default)
Initiate a keyclick sound
80
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