TAS5715
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SLOS645 –AUGUST 2010
Headphone Usage
HP/SPKR
(SE/BTL)
VALID
PWM_A(L+)
PWM_C(R+)
SpkrL+/R+
SpkrL+/R+
SpkrL–/R–
50%
50%
HPL/R
t(exitSDHP)
t(enterSDHPamp)
t(mute)
t(mute)
t(exitSDHPamp)
PWM_B(L–)
PWM_D(R–)
SpkrL–/R–
t(enterSD)
t(exitSD)
FAULT = 1 Output
HPSD
(A0/FAULT)
Hi-Z (Ext. Pulldown)
I2C: SCL
SDA
Enter
ACSD
Exit
ACSD
Enable
FAULT
Disable
FAULT
Enter
ACSD
Exit
ACSD
Unmute
(if not done in
Spkr Config)
HP
Config
Spkr
Config
Mute
Unmute
Mute
PDN
T0452-01
Headphone/Speaker Configuration
PARAMETE
R
DESCRIPTION
MIN TYP MAX UNIT
t(mute)
Mute volume ramp wait time (t(volramp) given by register 0x0E <2:0>)
5 + 1.3 × t(volramp)
1 + 1.3 × t(start)
ms
ms
Exit shutdown wait time before issuing further commands to device (t(start)
given by regioster 0x1A<4:0>)
t(exitSD)
Enter shutdown wait time before issuing further commands to device (t(stop)
given by regioster 0x1A<4:0>)
t(enterSD)
1 + 1.3 × t(stop)
1 + 1.3 × t(HPchg)
1 + 1.3 × t(HPamp)
1 + 1.3 × t(HPamp)
ms
ms
ms
ms
Exit shutdown wait time before enabling external headphone amp (t(HPchg)
given by register 0x1A<6:5>)
t(exitSDHP)
Headphone amp exit shutdown wait time before unmuting (t(HPamp) given by
register 0x1C<7:4>)
t(exitSDHPamp)
t(enterSDHPamp)
Headphone amp enter shutdown wait time before entering ACSD (t(HPamp)
given by register 0x1C<7:4>)
Figure 57. Headphone Control Use Model
Speaker Configuration
•
•
•
•
•
•
•
•
•
Registers 0x07–0x0B
Register 0x19
Master/channel speaker volume
SDG = 0x30 or 0x00 (no channels in SDG)
ICD1/2 = {0xB8, 0x60}
Registers 0x11–0x12
Register 0x1A<7>
Register 0x1A<4:0>
Register 0x20<23>
Register 0x20<19>
Register 0x46<1:0>
Register 0x50<7>
Clear bit for speaker mode (HP/SPKR = 0)
Set to 0 1000 for 16.5-ms start/stop period
Set bit for Ch1 BD mode
Set bit for Ch2 BD mode
Set both bits to enable DRC1 and DRC2
Clear bit to enable EQ
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