參數(shù)資料
型號: UPC1892
廠商: NEC Corp.
英文描述: MATRIX SURROUND SOUND PROCESSOR WITH SOUND PROCESSOR
中文描述: 矩陣環(huán)繞聲處理器,音頻處理器
文件頁數(shù): 18/42頁
文件大?。?/td> 299K
代理商: UPC1892
μ
PC1892
18
Electrical characteristics measurement:
μ
PC1892CT Volume control, tone control block (1/3)
Parameter
Symbol
Test conditions
Surround
mode
VOL
BAL
TRE
BAS
L+R
EFF
Volume attenuation
ATT
VOL
OFF
5.0
0.2
2.5
2.5
2.5
L-channel
L
IN
(Pin 25) : f = 1 kHz, V
IN
= 0.5 V
r.m.s.
V
REF
: L
OUT
(Pin 14) (Volume control
voltage : 5.0 V)
V
ATT
: L
OUT
(Pin 14) (Volume control
voltage : 0.2 V)
JIS-A filter used.
R-channel
R
IN
(Pin 26) : f = 1 kHz, V
IN
= 0.5 V
r.m.s.
V
REF
: R
OUT
(Pin 12) (Volume control
voltage : 5.0 V)
V
ATT
: R
OUT
(Pin 12) (Volume control
voltage : 0.2 V)
JIS-A filter used.
L+R volume
attenuation
ATT
L+R
OFF
5.0
0.2
L
IN
, R
IN
(Pin 25, 26) : f = 1 kHz,
V
IN
= 0.5 V
r.m.s.
V
L+RREF
: L+R
OUT
(Pin 13)
(L+R volume control voltage : 5.0 V)
V
L+RATT
: L+R
OUT
(Pin 13)
(L+R volume control voltage : 0.2 V)
JIS-A filter used.
Balance attenuation
Lch/Rch
ATT
BALL
OFF
L-channel
L
IN
(Pin 25) : f = 1 kHz, V
IN
= 0.5 V
r.m.s.
V
REF
: L
OUT
(Pin 14) (Balance control
voltage : 2.5 V)
V
ATT
: L
OUT
(Pin 14) (Balance control
voltage : 4.5 V)
JIS-A filter used.
R-channel
R
IN
(Pin 26) : f = 1 kHz, V
IN
= 0.5 V
r.m.s.
V
REF
: R
OUT
(Pin 12) (Balance control
voltage : 2.5 V)
V
ATT
: R
OUT
(Pin 12) (Balance control
voltage : 0.5 V)
JIS-A filter used.
5.0
2.5
4.5
2.5
2.5
ATT
BALR
5.0
2.5
0.5
2.5
2.5
Note 1.
OFF: OFF mode
2.
VOL: Volume control voltage, BAL: Balance control voltage, TRE: Treble control voltage, BAS: Bass control voltage,
L+R: L+R volume control voltage, EFF: Effect control voltage, –: Undefined
V
L+RATT
ATT
L+R
= 20 log
V
L+RREF
Note 1
Control pin voltage (V)
Note 2
V
ATT
ATT
VOL
= 20 log
V
REF
V
ATT
ATT
BAL
= 20 log
V
REF
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