參數(shù)資料
型號: TDA9605H
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Audio processor with head amplifier for VHS hi-fi
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
文件頁數(shù): 15/52頁
文件大?。?/td> 244K
代理商: TDA9605H
1999 Apr 14
15
Philips Semiconductors
Product specification
Audio processor with head amplifier for VHS hi-fi
TDA9605H
Fig.9 Functional diagram of the envelope output circuit.
handbook, full pagewidth
MGR845
output select
hi-fi
output select
hi-fi
left channel audio:
right channel audio:
EOS AFM
AF
envelope
FULL-WAVE
RECTIFIER
FULL-WAVE
RECTIFIER
PEAK HOLD
PEAK HOLD
1.3 or 1.4 MHz carrier
RESET
RESET
EOS AFM
test 10
HF
envelope
SAMPLE-
AND-HOLD
RMHID
RM
HID
ENVOUT
SAMPLE-
AND-HOLD
SAMPLE
SAMPLE
HF LEVEL DETECTOR
1.7 or 1.8 MHz carrier
HF LEVEL DETECTOR
SQUARE ROOT
COMPRESSION
SQUARE ROOT
COMPRESSION
td
Fig.10 Timing diagram of the envelope output signal.
handbook, full pagewidth
MGR844
registers
HID signal
HID period
ENVOUT
level meter
display
EOS = 0 or AFM = 1
EOS = 1 and
AFM = 0
0
1
2
3
HF envelope
peak right
in period
1
peak right
in period 0
peak right
in period
+
1
peak right
in period
+
2
peak left
in period 0
left (period 0)
right (period 0)
tracking level
indication
peak left
in period 1
peak left
in period 2
peak left
in period
+
3
left (period 1)
right (period 1)
left (period 2)
right (period 2)
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