參數(shù)資料
型號: THAT4311
廠商: Electronic Theatre Controls, Inc.
英文描述: Low-voltage, Low-power Analog Engine?? Dynamics Processor
中文描述: 低電壓,低功耗模擬引擎??動態(tài)處理器
文件頁數(shù): 5/12頁
文件大?。?/td> 230K
代理商: THAT4311
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: +1 508 478 9200; Fax: +1 508 478 0990; Web: www.thatcorp.com
Rev. 08/30/01
Preliminary Information
Page 5
Representative Data (Companding Noise Reduction)
Fig 11. End-to-End Transfer Function, 1kHz
Fig 12. End-to-End THD+N
Fig 13. Encoder Transfer Function, 1kHz
Fig 14. Encoder Frequency Response 20-20kHz
IN
17
12
OUT
VCA
EC-
1
EC+
SYM
OA3
U1A
Vref
Iset
2
TC
THAT4311
5
IN1
OUT
4
RMS
U1B
3
7
OA2
+
Vref
6
U1C
THAT4311
18
19
20
U1D
THAT4311
+
R1
200k
R2
200k
R13
2k
C1
10n
R3
8k06
R5
15k
R9
51R
R8
50k
R6
30k
R11B
10k
optional
R12
261k
C5
270p
C4
+
3u3
C7
10u
R7
20k
C6
+
10u
V+
C3
10u
C8
22u
V+
+5
C2
3u3
Encoder
In
Vref
Vref
22kHz 3 pole BW filter
Cap
8
Vee
THAT4311
10
Vref9
Vcc
11
Vref
U1E
R4
6k19
R10
6k19
C9
570p
Encoder
Out
C16
10u
R31
4k32
C10
4n7
VR1
20k
R11A
20k
1
1
1
+
+
+
+
+
+
_
_
Fig 15. THAT 4311 Noise Reduction Encoder Schematic
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