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參數(shù)資料
| 型號(hào)： | SAA8200HL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)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(yè)數(shù)： | 36/71頁(yè) |
| 文件大?。?/td> | 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
36 of 71
Philips Semiconductors
SAA8200HL
Ensation Base integrated wireless audio baseband
An overview of the maximum input voltages allowed against the presence of an external
resistor and the setting of the gain switch is given in
Table 16
; the power supply voltage is
assumed to be 3 V.
7.19.1.5
SDC
The Single-to-Differential Converter (SDC) consists of an inverting amplifier and a filter
network. The input is DC coupled, which means that decoupling must be done in front of
this module in case the input signal has a different common mode level than the SDC. For
optional biasing conditions, the SDC requires a sourcing bias current (into an NMOS
transistor) that is preferably proportional to the analog supply voltage.
7.19.2
Decimation filter (ADC)
The decimation from 128fs is performed in two stages (see
Figure 8
). The first stage
realizes sin(x)/x characteristics with decimation factor of 16. The second stage consists of
three half-band filters, each decimating by a factor of 2. The filter characteristics are
shown in
Table 17
.
Table 16:
Resistor 12 k
Present
Present
Absent
Absent
Application modes using input gain stage
input gain switch
0 dB
6 dB
0 dB
6 dB
maximum input voltage
2 V (RMS)
1 V (RMS)
1 V (RMS)
0.5 V (RMS)
Table 17:
Description
Decimation filter
Pass band ripple
Stop band
Overall gain
Dynamic range
Droop
DC blocking filter 1
Pass band ripple
Pass band gain
Droop
DC attenuation
Dynamic range
DC blocking filter 2
Pass band ripple
Pass band gain
Droop
DC attenuation
Dynamic range
Filter characteristics
Conditions
Value
Unit
up to 0.45f
s
from 0.55f
s
DC
up to 0.45f
s
at 0.45f
s
±
0.02
60
3
140
0.18
dB
dB
dB
dB
dB
none
0
0.5
> 40
> 110
dB
dB
dB
dB
dB
at 0.00045f
s
up to 0.45f
s
none
0
0.031
> 40
> 110
dB
dB
dB
dB
dB
at 0.00045f
s
up to 0.45f
s
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| 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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