參數(shù)資料
型號(hào)： C1851BCU
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
文件頁數(shù)： 48/60頁
文件大小： 447K
代理商： C1851BCU
52
PC1851B
Data Sheet S13417EJ2V0DS00
(5/8)
Parameter
Symbol
Test Conditions
User Mode Note
Monaural total S/N
S/NMO
L-channel
Monaural
S/NMO = 20 log (VOMOL
÷ VL)
VOMOL : Output voltage of FOL pin after LPF (30 kHz)
COM pin: Monaural signal (300 Hz, 100 % modulation) input
VL: Output voltage of FOL pin (no signal)
R-channel
S/NMO = 20 log (VOMOR
÷ VR)
VOMOR: Output voltage of FOR pin after LPF (30 kHz)
COM pin: Monaural signal (300 Hz, 100 % modulation) input
VR: Output voltage of FOR pin (no signal)
Stereo total S/N
S/NST
L-channel
Stereo
S/NST = 20 log (VOSTL
÷ VL)
VOSTL : Output voltage of FOL pin after LPF (30 kHz)
COM pin: Stereo signal (L-only, 300 Hz, 100 % modulation) input
VL: Output voltage of FOL pin
COM pin: Pilot signal input
R-channel
S/NST = 20 log (VOSTR
÷ VR)
VOSTR : Output voltage of FOR pin after LPF (30 kHz)
COM pin: Stereo signal (R-only, 300 Hz, 100 % modulation) input
VR: Output voltage of FOR pin
COM pin: Pilot signal input
SAP total S/N
S/NSAP
L-channel
SAP1
S/NSAP = 20 log (VOSAP1L
÷ VL)
VOSAP1L : Output voltage of FOL pin after LPF (30 kHz)
COM pin: SAP signal (300 Hz, 100 % modulation) input
VL: Output voltage of FOL pin
COM pin: SAP carrier (0 % modulation) input
R-channel
S/NSAP = 20 log (VOSAP1R
÷ VR)
VOSAP1R : Output voltage of FOR pin after LPF (30 kHz)
COM pin: SAP signal (300 Hz, 100 % modulation) input
VR: Output voltage of FOR pin
COM pin: SAP carrier (0 % modulation) input
Total muting level
Mute
Mute = 20 log (VOMOL
÷ VM)
Monaural
VOMOL : Output voltage of LOT pin
mute
COM pin: Monaural signal (1 kHz, 100 % modulation) input
VM : Output voltage of LOT pin
Write register 06H, D0: 0
COM pin: Monaural signal (1 kHz, 100 % modulation) input
Timing current
IT
IT : Current that flows from VCC to STI, WTI pins
STI, WTI pins : 6 V DC is applied.
Inter-mode DC offset 1
VDOF1
VDOF1 = VMONO – VMute
Mute
VMONO : DC voltage at LOT and ROT pins
to
User mode : Monaural
Monaural
NDT pin: 6 V DC is applied.
VMute : DC voltage at LOT and ROT pins
User mode : Mute (write register 06H, D1: 0)
NDT pin: 6 V DC is applied.
Note
For details about the User Mode, refer to 5. MODE MATRIX.
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