92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 83
92hd98
Manufacturer Part Number
92hd98
Description
Datasheet
Manufacturer
Integrated Device Technology
Datasheet
1.92HD98.pdf
(274 pages)
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92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
Field Name
ChargePumpFreqBypass
ChargePumpClkRate
ChargePumpClkDiv
ChargePumpClkSel
PadGnd
InputGnd
Rsvd1
Bits
12
Capless charge pump frequency reg bypass.
11:8
Capless charge pump clock rate:
0000b = 800.0kHz (24MHz/30)
0001b = 750.0kHz (24MHz/32)
0010b = 706.9kHz (24MHz/34)
0011b = 666.7kHz (24MHz/36)
0100b = 631.6kHz (24MHz/38)
0101b = 600.0kHz (24MHz/40)
0110b = 571.4kHz (24MHz/42)
0111b = 545.5kHz (24MHz/44)
1000b = 800.0kHz (24MHz/30)
1001b = 857.1kHz (24MHz/28)
1010b = 923.1kHz (24MHz/26)
1011b = 1.000MHz (24MHz/24)
1100b = 1.091MHz (24MHz/22)
1101b = 1.200MHz (24MHz/20)
1110b = 1.333MHz (24MHz/18)
1111b = 1.500MHz (24MHz/16)
7:5
Capless charge pump analog clock divider:
010b = Divide by 2, 50% duty cycle
100b = Divide by 4, 50% duty cycle
110b = Divide by 2, 75% duty cycle
011b = Divide by 4, 75% duty cycle
111b = Divide by 4, 87.5% duty cycle
Other values undefined
4
Capless charge pump clock select: 0 = ring oscillator, 1 = charge pump clock
defined by AFGCaplessChargePumpClkRate[3:0] field below.
3
Ground the output pad of the capless amplifiers.
2
Ground the input to the capless output amplifiers.
1
Reserved
001b = No divide
R/W
RW
RW
RW
RW
RW
RW
R
Default
1h
8h
4h
0h
0h
0h
0h
83
Reset
POR
POR
POR
POR
POR
POR
NA
V 0.91 10/10
92HD98
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