92HD92 Datasheet, PDF (67/306 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD92
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Register Address
Bit
Label
7
ENABLE
6
TRC_ESD
5
STRENDRV
0x29
TEST and CONTROL
Right
verb F99/799
4:3 SCTHR
2:0 DEADTIME
Type Default
Description
RW 1
1 = Enable BTL Power stage
RO 0
1 = ESD trigger detected
0 = No trigger
RW 0
1 = Strengthen pre-drive
0 = Normal
RW 01
Short circuit threshold current
00 = 10% of PVDD
01 = 14% of PVDD
10 = 16% of PVDD
11 = 20% of PVDD
RW 001
Dead time for output FETs
000 = 0.5ns
001 = 1.0ns
010 = 1.5ns
011 = 2ns
100 = 4ns
101 = 8ns
110 = 8ns
111 = 8ns
Register Address
0x2A
Short Circuit Right
verb F9A/79A
Bit
Label
7
TEST_EN
6
SC_DIS
5
RSVD
4
FAULT_SC
3
RSVD
2
PNSEL
1
FORCE_SC
0
TEST
Type Default
Description
RW 0
1 = Enable short circuit test
RW 0
1 = disable short circuit protection
RW 0
Reserved
RO 0
1 = Fault
RW 0
Reserved
RW 0
1=PFET tested, 0=NFET tested
RW 0
1 = force short circuit
RW 0
1 = Pos PFET / Neg NFET on, 0 = Pos NFET / Neg PFET on
2.29.2.33. LDO LEVEL CONTROL Register
This register reset by POR/DAFG/ULR
Register Address
Bit
Label
Type Default
Description
7:3 Reserved
RO 0x0
RESERVED
2
0x2B
LDO LEVEL CONTROL
verb F9B/79B
1:0
Lv_QUAD_BIAS RW 0
Lv_reg_cntrl_bit RW 0x0
Two bits are defined to program the output of the 1.8V LDO
00 = normal operation (3.3V in to 1.8V out)
01 = 1.8V*1.1 = 1.98V
10 = 1.8V*0.9 = 1.62V11 = power down LDO/bypass. When
disabled, the DVDD_Core pin must be supplied with a
nominal 1.8V from an external source.
IDT™ CONFIDENTIAL
67
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92HD92