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參數(shù)資料
型號： TLV320DAC3100IRHBT
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： DAC WITH PROGRAMMABLE PLL, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù)： 72/97頁
文件大小： 1134K
代理商： TLV320DAC3100IRHBT
SLAS671 – FEBRUARY 2010
www.ti.com
Page 0 / Register 78 (0x4E): Beep Cos(x) MSB
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D0
R/W
0111 1110
8 MSBs out of 16 bits for cos(2p × fin/fS), where fin is the beep frequency and fS is the DAC sample rate.
Page 0 / Register 79 (0x4F): Beep Cos(x) LSB
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D0
R/W
1110 0011
8 LSBs out of 16 bits for cos(2p × fin/fS), where fin is the beep frequency and fS is the DAC sample rate.
Page 0 / Register 80 (0x50) Through Page 0 / Register 115 (0x73): Reserved
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D0
R
XXXX XXXX
Reserved. Do not use.
Page 0 / Register 116 (0x74): VOL/MICDET-Pin SAR ADC – Volume Control
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R/W
0
0: DAC volume control is controlled by control register (7-bit Vol ADC is powered down).
1: DAC volume control is controlled by pin.
D6
R/W
0
0: Internal on-chip RC oscillator is used for the 7-bit Vol ADC for pin volume control.
1: MCLK is used for the 7-bit Vol ADC for pin volume control.
D5–D4
R/W
00
00: No hysteresis for volume control ADC output
01: Hysteresis of ±1 bit
10: Hysteresis of ±2 bits
11: Reserved. Do not write this sequence to these bits.
D3
R/W
0
Reserved. Write only reset value.
D2–D0
R/W
000
Throughput of the 7-bit Vol ADC for pin volume control, frequency based on MCLK or internal oscillator.
MCLK = 12 MHz
Internal Oscillator Source
000: Throughput =
15.625 Hz
10.68 Hz
001: Throughput =
31.25 Hz
21.35 Hz
010: Throughput =
62.5 Hz
42.71 Hz
011: Throughput =
125 Hz
8.2 Hz
100: Throughput =
250 Hz
170 Hz
101: Throughput =
500 Hz
340 Hz
110: Throughput =
1 kHz
680 Hz
111: Throughput =
2 kHz
1.37 kHz
Note: These values are based on a nominal oscillator
frequency of 8.2 MHz. The values scale according to
the actual oscillator frequency.
Page 0 / Register 117 (0x75): VOL/MICDET-Pin Gain
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R
0
Reserved. Write only zero to this bit.
D6–D0
R
XXX XXXX
000 0000: Gain applied by pin volume control = 18 dB
000 0001: Gain applied by pin volume control = 17.5 dB
000 0010: Gain applied by pin volume control = 17 dB
...
010 0011: Gain applied by pin volume control = 0.5 dB
010 0100: Gain applied by pin volume control = 0 dB
010 0101: Gain applied by pin volume control = –0.5 dB
...
101 1001: Gain applied by pin volume control = –26.5 dB
101 1010: Gain applied by pin volume control = –27 dB
101 1011: Gain applied by pin volume control = –28 dB
...
111 1101: Gain applied by pin volume control = –62 dB
111 1110: Gain applied by pin volume control = –63 dB
111 1111: Reserved
74
REGISTER MAP
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TLV320DAC3100
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