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參數(shù)資料
| 型號(hào)： | LA1838 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Home Stereo IC with Electronic Tuning Support(帶電子調(diào)諧的家庭立體聲芯片) |
| 中文描述： | 單芯片家用音響集成電路與電子調(diào)諧支持（帶電子調(diào)諧的家庭立體聲芯片） |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | LA1838 |
Specifications
Maximum Ratings
at Ta = 25°C
Operating Conditions
at Ta = 25°C
Operating Characteristics
at Ta = 25°C, V
CC
= 9 V, in the specified test circuit.
No. 5888-2/9
LA1838
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
Pd max
12
V
Allowable power dissipation
Ta
≤
70°C
550
mW
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
V
CC
op
9
V
Operating supply voltage range
7 to 11
V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[FM Mono Characteristics] fc = 10.7 MHz, fm = 1 kHz
Current drain
I
CCO-FM
V
OFM
With no input signal
18
31
44
mA
Demodulator output
100 dBμ, 100% modulation, the pin 16 output
730
1100
1460
mVrms
Channel balance
C.B-mono
100 dBμ, 100% modulation, the pin 16 output/the
pin 17 output
–1.5
0
+1.5
dB
Total harmonic distortion (mono)
THD
FM
S/N
FM
AMR
100 dBμ, 100% modulation, the pin 16 output
0.3
1.5
%
Signal-to-noise ratio
100 dBμ, 100% modulation, the pin 16 output
70
77
dB
AM rejection ratio
100 dBμ, AM 30% modulation, the pin 16 output
40
55
dB
Input limiting voltage
–3dBL.S
100 dBμ, 100% modulation, referenced to the output,
the input when the output is down by –3 dB
26
32
38
dBμ
LED indicator on sensitivity
SD
On-FM
SD
BW
V
IFBuff-FM
V
SM-FM1
V
SM-FM2
Mute-Att
47
57
67
dBμ
LED indicator on bandwidth
100 dBμ
130
210
300
kHz
IF counter buffer output
100 dBμ, the pin 13 output
80
120
160
mVrms
S-meter output
0 dBμ, the pin 11 output
0
0.1
0.5
V
100 dBμ, the pin 11 output
3.6
4.3
5.0
V
Mute attenuation
100 dBμ, 100% modulation, the pin 16 output
75
85
dB
[FM Stereo Characteristics] fc = 10.7 MHz, fm = 1 kHz, L + R = 90%, Pilot = 10%, 100 dBμ
Separation (left)
Sep
L
Sep
R
ST
ON
ST
OFF
THD-main
Left channel modulated. The pin 16 output/the pin 17 output
30
45
dB
Separation (right)
Right channel modulated. The pin 17 output/the pin 16 output
30
45
dB
Stereo on level
The pilot modulation such that V7 falls under 0.7 V
1.3
2.7
5
%
Stereo off level
The pilot modulation such that V7 rises to over 4.5 V
1.5
%
Total harmonic distortion (main)
Left + right modulation. The pin 16 output.
0.3
1.5
%
fs = 113 kHz, Vs = 90%, pilot = 10%
The left - right modulation 1 kHz demodulated output
with respect to the pin 16 output
Brej-3rd
40
dB
Adjacent channel rejection ratio
fs = 189 kHz, Vs = 90%, pilot = 10%
The left - right modulation 1 kHz demodulated output
with respect to the pin 16 output
Brej-5th
40
dB
[AM Characteristics] fc = 1000 kHz, fm = 1 kHz
Current drain
I
CCO-AM
V
OAM1
V
OAM2
S/N
AM1
S/N
AM2
THD
AM1
THD
AM2
SD
On-AM
V
OSC-AM
V
IFBuff-AM
V
STIF-AM
V
SM-AM
With no input signal
15
25
35
mA
Detector output
23 dBμ, 30% modulation, the pin 16 output
100
180
360
mVrms
80 dBμ, 30% modulation, the pin 16 output
200
320
500
mVrms
Signal-to-noise ratio
23 dBμ, 30% modulation, the pin 16 output
18
22
dB
80 dBμ, 30% modulation, the pin 16 output
49
55
dB
Total harmonic distortion
80 dBμ, 30% modulation, the pin 16 output
0.4
1.2
%
80 dBμ, 80% modulation, the pin 16 output
1.0
4.0
%
LED indicator on sensitivity
17
27
37
dBμ
Local oscillator buffer output
With no input signal, the pin 30 output
110
160
220
mVrms
IF counter buffer output
80 dBμ, 100% modulation, the pin 13 output
160
220
300
mVrms
ST - IF output
80 dBμ, 100% modulation, the pin 7 output
16
34
48
mVrms
S-meter output
0 dBμ, 100% modulation
0
0
0.2
V
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