參數(shù)資料
型號(hào)： UPC1854ACT
廠商： NEC Corp.
英文描述： I2C BUS-COMPATIBLE US MTS PROCESSING LSI
中文描述： I2C總線兼容美國(guó)的多邊貿(mào)易體制處理LSI
文件頁(yè)數(shù)： 41/48頁(yè)
文件大?。?/td> 251K
代理商： UPC1854ACT
μ
PC1854A
41
Data Sheet S12816EJ3V0DS00
(5/7)
Parameter
Symbol
Test Conditions
User Mode
Note
Stereo total harmonic
distortion 2
THD
ST2
L-channel
THD
ST2
: Distortion rate of LOT pin
COM pin : Stereo signal (L-only, 8 kHz, 30% modulation) input
R-channel
THD
ST2
: Distortion rate of ROT pin
COM pin : Stereo signal (R-only, 8 kHz, 30% modulation) input
Stereo
SAP total harmonic distortion THD
SAP1
THD
SAP1
: Distortion rate of LOT and ROT pins
COM pin : SAP signal (1 kHz, 100% modulation) input
SAP1
SAP single harmonic
distortion
THD
SAP2
THD
SAP2
: Distortion rate of SOT pin
COM pin : SAP signal (1 kHz, 100% modulation,
Noise reduction off) input
SAP
Normal output harmonic
distortion
THD
NO
THD
NO
: Distortion rate of NOT pin
COM pin : Monaural signal (1 kHz, 100% modulation) input
Monaural
Crosstalk 1 (SAP
→
stereo)
CT
1
CT
1
= 20 log (V
CT1
÷
V
L
)
V
CT1
: V
L
after BPF (3 kHz)
V
L
: Output voltage of LOT pin
COM pin : Composite signal {Stereo signal (L-only, 800 Hz, 30%
modulation) and SAP signal (3 kHz, 30 % modulation) }
input
BPF : Attenuation of 0 dB at 3 kHz and 80 dB at 800 Hz, or more
Stereo
Crosstalk 2 (stereo
→
SAP)
CT
2
CT
2
= 20 log (V
CT2
÷
V
L
)
V
CT2
: V
L
after BPF (3 kHz)
V
L
: Output voltage of LOT pin
COM pin : Composite signal {SAPsignal (800 Hz, 30% modulation)
and Stereo signal (L-only, 3 kHz, 30 % modulation) }
input
BPF : Attenuation of 0 dB at 3 kHz and 80 dB at 800 Hz, or more
SAP1
Monaural total S/N
S/N
MO
L-channel
S/N
MO
= 20 log (V
OMOL
÷
V
L
)
V
OMOL
: Output voltage of LOT pin
COM pin : Monaural signal (300 Hz, 100% modulation) input
V
L
: Output voltage of LOT pin (no signal)
R-channel
S/N
MO
= 20 log (V
OMOR
÷
V
R
)
V
OMOR
: Output voltage of ROT pin
COM pin : Monaural signal (300 Hz, 100% modulation) input
V
R
: Output voltage of ROT pin (no signal)
Monaural
Stereo total S/N
S/N
ST
L-channel
S/N
ST
= 20 log (V
OSTL
÷
V
L
)
V
OSTL
: Output voltage of LOT pin
COM pin : Stereo signal (L-only, 300 Hz, 100% modulation) input
V
L
: Output voltage of LOT pin
COM pin : Pilot signal input
R-channel
S/N
ST
= 20 log (V
OSTR
÷
V
R
)
V
OSTR
: Output voltage of ROT pin
COM pin : Stereo signal (R-only, 300 Hz, 100% modulation) input
V
R
: Output voltage of ROT pin
COM pin : Pilot signal input
Stereo
Note
For details about the User Mode, refer to chapter
5. MODE MATRIX
.
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