AK4141 Datasheet, PDF (7/96 Pages) Asahi Kasei Microsystems – NICAM/A2/EIA-J Digital Stereo Decoder

[AK4141]
オーディオ特性
(Ta=25C; AVDD=3.3V, DVDD=1.8V, TVDD=3.3V; GND1=GND2=GND3=GND4=GND5=0V; fs=48kHz;
SCLK=64fs; Signal Frequency=1kHz; 24bit Data; Measurement frequency=50Hz  13kHz; unless otherwise specified)
SIF & Demodulator Parameter
SIF Input Impedance
GSEL bit = 0
GSEL bit = 1
SIF Separation (Note 3)
AGC step width
Input Voltage
1 or 2 FM Carriers
GSEL bit = “0”
GSEL bit = “1”
1 FM and 1 NICAM Carrier
GSEL bit = “0”
GSEL bit = “1”
1 AM and 1 NICAM Carrier
GSEL bit = “0”
GSEL bit = “1”
1 NICAM Only
GSEL bit = “0”
GSEL bit = “1”
Max FM-deviation (approx.)
Normal
High deviation
Very High Deviation
min
typ
max
Unit
4.05
4.50
5.09
5.66
30
50
0.64
kohm
kohm
dB
dB
0.1
1.4
Vpp
0.1
1.0
Vpp
0.1
1.4
Vpp
0.1
1.0
Vpp
0.1
0.8
Vpp
0.1
0.8
Vpp
0.05
1.0
Vpp
0.05
1.0
Vpp
+/-180
kHz
+/-360
kHz
+/-540
kHz
NICAM Characteristics
min
typ
max
Units
Output level (1kHz, 0dBr)
S/N
THD+N
NICAM Bit Error Rate (FM+ NICAM, normal condition)
Frequency response (20 ~ 15kHz, -12dB, dual)
NICAM Crosstalk attenuation (dual)
Channel separation (stereo)
-1.5
+1.5
dB
74
80
dB
0.05
0.15
%
1
10^-7
-1
+1
dB
80
dB
80
dB
FM Characteristics (Note 4)
min
typ
max
Units
Output level (1kHz, 0dBr)
S/N
THD+N
Frequency response (20 ~ 12kHz, -12dB, dual)
FM Crosstalk attenuation (dual)
Channel separation (stereo)
AM Characteristics
-1.5
+1.5
dB
67
73
dB
0.1
0.3
%
-1
+1
dB
75
85
dB
30
40
dB
min
typ
max
Units
S/N
47
THD+N
Frequency response (20 ~ 12kHz, -12dB, dual)
-2.5
Note 3. Selected SIF pin is connected to GND through 10nF capacitor.
Note 4. 1 FM-Carrier, 5.5MHz.
62
dB
1.2
3
%
+1
dB
MS0952-J-03
-7-
2013/12