參數(shù)資料
型號： UPC1851BCU
廠商： NEC Corp.
英文描述： I2C BUS-COMPATIBLE US MTS PROCESSING LSI
中文描述： I2C總線兼容美國的多邊貿(mào)易體制處理LSI
文件頁數(shù)： 52/60頁
文件大小： 447K
代理商： UPC1851BCU
52
μ
PC1851B
Data Sheet S13417EJ2V0DS00
(5/8)
Parameter
Symbol
Test Conditions
User Mode
Note
Monaural total S/N
S/N
MO
L-channel
S/N
MO
= 20 log (V
OMOL
÷
V
L
)
V
OMOL
: Output voltage of FOL pin after LPF (30 kHz)
COM pin: Monaural signal (300 Hz, 100 % modulation) input
V
L
: Output voltage of FOL pin (no signal)
Monaural
R-channel
S/N
MO
= 20 log (V
OMOR
÷
V
R
)
V
OMOR
: Output voltage of FOR pin after LPF (30 kHz)
COM pin: Monaural signal (300 Hz, 100 % modulation) input
V
R
: Output voltage of FOR pin (no signal)
Stereo total S/N
S/N
ST
L-channel
S/N
ST
= 20 log (V
OSTL
÷
V
L
)
V
OSTL
: Output voltage of FOL pin after LPF (30 kHz)
COM pin: Stereo signal (L-only, 300 Hz, 100 % modulation) input
V
L
: Output voltage of FOL pin
COM pin: Pilot signal input
Stereo
R-channel
S/N
ST
= 20 log (V
OSTR
÷
V
R
)
V
OSTR
: Output voltage of FOR pin after LPF (30 kHz)
COM pin: Stereo signal (R-only, 300 Hz, 100 % modulation) input
V
R
: Output voltage of FOR pin
COM pin: Pilot signal input
SAP total S/N
S/N
SAP
L-channel
S/N
SAP
= 20 log (V
OSAP1L
÷
V
L
)
V
OSAP1L
: Output voltage of FOL pin after LPF (30 kHz)
COM pin: SAP signal (300 Hz, 100 % modulation) input
V
L
: Output voltage of FOL pin
COM pin: SAP carrier (0 % modulation) input
SAP1
R-channel
S/N
SAP
= 20 log (V
OSAP1R
÷
V
R
)
V
OSAP1R
: Output voltage of FOR pin after LPF (30 kHz)
COM pin: SAP signal (300 Hz, 100 % modulation) input
V
R
: Output voltage of FOR pin
COM pin: SAP carrier (0 % modulation) input
Total muting level
Mute
Mute = 20 log (V
OMOL
÷
V
M
)
V
OMOL
: Output voltage of LOT pin
COM pin: Monaural signal (1 kHz, 100 % modulation) input
V
M
: Output voltage of LOT pin
Write register 06H, D0: 0
COM pin: Monaural signal (1 kHz, 100 % modulation) input
Monaural
mute
Timing current
I
T
I
T
: Current that flows from V
CC
to STI, WTI pins
STI, WTI pins : 6 V DC is applied.
Inter-mode DC offset 1
V
DOF1
V
DOF1
= V
MONO
– V
Mute
V
MONO
: DC voltage at LOT and ROT pins
User mode : Monaural
NDT pin: 6 V DC is applied.
V
Mute
: DC voltage at LOT and ROT pins
User mode : Mute (write register 06H, D1: 0)
NDT pin: 6 V DC is applied.
Mute
to
Monaural
Note
For details about the User Mode, refer to
5. MODE MATRIX
.
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