参数资料
型号: PCM3794RHBTG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 通信及网络
英文描述: SPECIALTY TELECOM CIRCUIT, PQCC32
封装: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数: 32/67页
文件大小: 1417K
代理商: PCM3794RHBTG4
www.ti.com
SLES193C – AUGUST 2006 – REVISED FEBRUARY 2007
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 76
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RLSR
RLSL
IDX[6:0]: 100 1100b (4Ch): Register 76
RLSR: Reset Thermal Protection Circuit for SPR (R-Channel Speaker Amplifier)
RLSL: Reset Thermal Protection Circuit for SPL (L-Channel Speaker Amplifier)
Default value: 0
Short-circuit protection puts the device in power-down status after it detects a temperature of approximately
150
°C on the die. These bits must be set to 1 to restore power to the speaker amplifier.
RLSR, RLSL = 0
Operation (default)
RLSR, RLSL = 1
Reset (set to 0 automatically after being set to 1)
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 77
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
HPDS
RSV
STHC
STHR
STHL
STSR
STSL
IDX[6:0]: 100 1101b (4Dh): Register 77
HPDS: Headphone Detection Status
Default value: 0
The HPDS bit shows the status of insert detection for the headphone. This is a read-only bit. The polarity
depends on register 75 HPDP setting.
HPDS = 0
HDTI input (when HPDP = 0) (default)
HPDS = 1
Inverted HDTI input (When HPDP = 1)
STHC: Short Protection Status for HPC (Headphone COM/Monaural Output)
STHR: Short Protection Status for HPR (R-Channel Headphone)
STHL: Short Protection Status for HPL (L-Channel Headphone)
These bits can be read through the I2C interface to determine short protection status.
STHC, STHR, STHL = 0
Detect short circuit
STHC, STHR, STHL = 1
Not detect short circuit
STSR: Thermal Protection Status for SPR (R-Channel Speaker)
STSL: Thermal Protection Status for SPL (L-Channel Speaker)
These bits can be read through the I2C interface to determine thermal protection status.
STSR, STSL = 0
Detect thermal protection
STSR, STSL = 1
Not detect thermal protection
38
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