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參數資料
| 型號： | TPA2026D2YZHT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | AUDIO AMPLIFIER, PBGA16 |
| 封裝： | 2.20 X 2.20 MM, GREEN, DSBGA-16 |
| 文件頁數： | 20/39頁 |
| 文件大小： | 823K |
| 代理商： | TPA2026D2YZHT |
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SLOS649A – MARCH 2010 – REVISED JANUARY 2011
IC FUNCTION CONTROL (Address: 1)
REGISTER
I2C BIT
LABEL
DEFAULT
DESCRIPTION
ADDRESS
01 (01H) – IC
7
SPK_EN_R
1 (enabled)
Enables right amplifier
Function Control
6
SPK_EN_L
1 (enabled)
Enables left amplifier
5
SWS
0 (enabled)
Shutdown IC when bit = 1
4
FAULT_R
0
Changes to a 1 when there is a short on the right channel. Reset by writing
a 0.
3
FAULT_L
0
Changes to a 1 when there is a short on the left channel. Reset by writing a
0
2
Thermal
0
Changes to a 1 when die temperature is above 150°C
1
UNUSED
1
0
NG_EN
1 (enabled)
Enables Noise Gate function
SPK_EN_R:
Enable bit for the right-channel amplifier. Amplifier is active when bit is high. This function is
gated by thermal and returns once the IC is below the threshold temperature.
SPK_EN_L:
Enable bit for the left-channel amplifier. Amplifier is active when bit is high. This function is
gated by thermal and returns once the IC is below the threshold temperature
SWS:
Software shutdown control. The device is in software shutdown when the bit is '1' (control, bias
and oscillator are inactive). When the bit is '0' the control, bias and oscillator are enabled.
FAULT_L:
This bit indicates that an over-current event has occurred on the left channel with a '1'. This bit
is cleared by writing a '0' to it.
FAULT_R:
This bit indicates that an over-current event has occurred on the right channel with a '1'. This
bit is cleared by writing a '0' to it.
Thermal:
This bit indicates a thermal shutdown that was initiated by the hardware with a '1'. This bit is
deglitched and latched, and can be cleared by writing a '0' to it.
NG_EN:
Enable bit for the Noise Gate function. This function is enabled when this bit is high. This
function can only be enabled when the Compression ratio is not 1:1.
AGC ATTACK CONTROL (Address: 2)
REGISTER
LABEL
DEFAULT
DESCRIPTION
I2C BIT
ADDRESS
02 (02H) –
7:6
Unused
00
AGC Control
5:0
ATK_time
000101
AGC Attack time (gain ramp down)
(1.28 ms/6 dB)
Per Step
Per 6 dB
90% Range
000001
0.1067 ms
1.28 ms
5.76 ms
000010
0.2134 ms
2.56 ms
11.52 ms
000011
0.3201 ms
3.84 ms
17.19 ms
000100
0.4268 ms
5.12 ms
23.04 ms
(time increases by 0.1067 ms with every step)
111111
6.722 ms
80.66 ms
362.99 ms
ATK_time
These bits set the attack time for the AGC function. The attack time is the minimum time
between gain decreases.
Copyright 2010–2011, Texas Instruments Incorporated
27
Product Folder Link(s): TPA2026D2
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