參數(shù)資料
型號： PS9702B
廠商： Electronic Theatre Controls, Inc.
英文描述： 6Ch, 24bit, 192kHz Digital Audio Processor for Full Digital Amplifier
中文描述： 6通道，24位，192kHz的數(shù)字音頻處理器的全數(shù)字放大器
文件頁數(shù)： 14/41頁
文件大?。?/td> 505K
代理商： PS9702B
PULSUS
PS9702B
Copyright 2000-2003, Pulsus Technologies Inc
.
14
2003 REV1.2
Register Name
Address
Word
Length
Description
Volume Configuration Registers
VOLUME1_CONTROL
0x05
2 Bytes
The PS9702B supports digital volume gain control with the resolution of 0.5dB/step.
The maximum volume gain is +24dB and the minimum volume gain (except -
∞
dB)
is -70dB. The each volume control register has 8-bit resolution. The register value
0x00 means +24dB, and the value 0xBC means -70dB. And the register value
larger than 0xBC means sound mute.
Table A-1 shows the relations between the register value and volume gain.
[15:8]: PWM output Channel 1 volume.
[7:0]: PWM output Channel 2 volume.
Default = 0xBDBD (Mute)
VOLUME2_CONTROL
0x06
2 Bytes
Table A-1 shows the relations between the register value and volume gain.
[15:8]: PWM output Channel 3 volume.
[7:0]: PWM output Channel 4 volume.
Default = 0xBDBD (Mute)
VOLUME3_CONTROL
0x07
2 Bytes
Table A-1 shows the relations between the register value and volume gain.
[15:8]: PWM output Channel 5 volume.
[7:0]: PWM output Channel 6 volume.
Default = 0xBDBD (Mute)
VOLUME4_CONTROL
0x08
2 Bytes
Table A-1 shows the relations between the register value and volume gain.
[15:8]: Record out left volume.
[7:0]: Record out right volume.
Default = 0x3030 (0dB)
Dynamic Range Compressor Configuration Registers
THRESHOLD1_CONTROL
0x09
2 Bytes
Automatic gain control (AGC) threshold level.
The AGC threshold level is controlled in dB magnitude and it has 0.5dB/step
resolution. This register has 8-bit resolution and has the same meaning of volume
control register.
Table A-1 shows the relations between the register value and threshold level.
[15:8]: AGC threshold of PWM output Channel 1 and Channel 2.
[7:0]:
Reserved.
Default = 0x3131 (-0.5dB)
THRESHOLD2_CONTROL
0x0A
2 Bytes
Table A-1 shows the relations between the register value and threshold level.
[15:8]: AGC threshold of PWM output Channel 3.
[7:0]: AGC threshold of PWM output Channel 4.
Default = 0x3131 (-0.5dB)
THRESHOLD3_CONTROL
0x0B
2 Bytes
Table A-1 shows the relations between the register value and threshold level.
[15:8]: AGC threshold of PWM output Channel 5.
[7:0]: AGC threshold of PWM output Channel 6.
Default = 0x3131 (-0.5dB)
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