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參數(shù)資料
| 型號： | SAA8200HL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Ensation Base integrated wireless audio baseband |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-407-1, LQFP-100 |
| 文件頁數(shù)： | 34/71頁 |
| 文件大小： | 298K |
| 代理商： | SAA8200HL |
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SAA8200HL_2
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 02 — 17 October 2005
34 of 71
Philips Semiconductors
SAA8200HL
Ensation Base integrated wireless audio baseband
7.18 Audio configuration
The audio configuration block gives access to the following system settings:
I
2
S-bus input/output format settings
Status of SPDIF module
SPDIF interrupt request
SDAC control and status registers
SADC control and status registers
Interrupt request to EPICS7B; with automatically clearing register
Power-down of the multi-channel 10-bit control ADC
DC-to-DC converter output voltage settings
DC-to-DC clock-stable indicator.
7.19 Audio input
7.19.1
ADC analog front-end
The analog front-end of the ADC consists of one stereo ADC with a selector in front of it.
Using this selector one can either select the microphone input with the microphone
amplifier (LNA) with a fixed 30 dB gain or the line input. The microphone input as well as
the line inputs have a Programmable Gain Amplifier (PGA) that allows gain control from
0 dB to 24 dB in steps of 3 dB.
The input impedance of the PGA (line in) is 12 k
, for the LNA this is 5 k
.
7.19.1.1
Applications and Power-down modes
The following Power-down and functional modes are supported:
Power-down mode in which the current consumption is very low (only leakage
currents). In this mode there is no reference voltage at the line input.
Line-in mode, in which the PGA can be used.
Microphone mode in which the rest of the non-used PGAs and ADCs are powered
down. In this mode the mono microphone signal can be sent to both left and right
input of the decimation filter. This is done with a separate multiplexer in front of the
decimation input. This multiplexer is controlled by bit SEL_MIC in the I
2
C-bus control
interface.
Mixed PGA and LNA mode with one line-in and one microphone input.
Fig 6.
Analog front-end
001aab455
mic
left
right
left_out
right_out
ADC
ADC
SDC
PGA
SDC
PGA
SDC
PGA
LNA
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相關代理商/技術參數(shù) |
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| SAA8200HL/N100,518 | 制造商:ST-Ericsson 功能描述:SAA8200HL Series Ensation Base Integrated Wireless Audio Baseband - LQFP-100 |
| SAA8510EV1UM | 制造商:STMicroelectronics 功能描述: |
| SA-A870-FREQ | 制造商:NEL 制造商全稱:Nel Frequency Controls,inc 功能描述:Positive ECL (PECL) |
| SA-A871-FREQ | 制造商:NEL 制造商全稱:Nel Frequency Controls,inc 功能描述:Positive ECL (PECL) |
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