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參數(shù)資料
| 型號(hào)： | LC7851 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | QPSK Demodulation and Audio Signal-Processing IC for Satellite Broadcast Reception |
| 中文描述： | QPSK解調(diào)器和音頻信號(hào)處理集成電路衛(wèi)星廣播接收 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 166K |
| 代理商： | LC7851 |
No. 5691-6/9
LC7851E
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
V
DD
V
I
1
V
I
2
V
O
Pd max
–0.3 to +7.0
V
Input voltage
Pins other than SCL and SDA
–0.3 to V
DD
+0.3
–0.3 to +5.3
V
SCL and SDA
V
Output voltage
–0.3 to VDD +0.3
V
Allowable power dissipation
Ta = –20 to +75°C
360
mW
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–40 to +125
°C
Specifications
Absolute Maximum Ratings
at Ta = 25°C, V
SS
= 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Supply voltage
V
DD
V
IH
V
IL
V
QPSKI
4.5
5.0
5.5
V
Input high-level voltage
0.75 V
DD
V
DD
V
Input low-level voltage
0
0.25 V
DD
V
QPSKI input voltage
0.7
0.9
1.1
V
Allowable Operating Ranges
at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Current drain
I
DD
68
98
mA
V
OH
= V
DD
– 0.4 V ; V
OH
= V
DD
– 0.4 V,
CMOS output pins:PHCNT, LOIN, MOD,
DSTRO, FRM, ERR, CK2M, BSTRO, MUTO,
DADO, REQ, SYCKO
I
OH
1
1.0
mA
Output high-level current
I
OH
2
V
OH
= V
CK5MH
– 25 mV, CK5M
–350
–100
μA
V
OL
= 0.4 V ; CMOS output pins: PHCNT,
LOIN, MOD, DSTRO, FRM, ERR, CK2M,
BSTRO, MUTO, DADO, REQ, SYCKO
I
OL
1
1.0
mA
I
OL
2
V
OL
= 0.4 V, open drain output
Pin 1: P0 to P7
1.0
mA
Output low-level current 1
I
OL
3
V
OL
= 0.4 V, open drain output
Pin 2: SDA
4.0
mA
I
OL
4
V
CK5M
V
OL
= V
CK5ML
+ 25 mV, CK5M
I
OH
= 30 μA, CK5M
V
I
= V
DD
, Schmitt inputs: TSL, RST, TEST1,
TEST2, BSTRI, DSTRI1, DSTRI2, DASL,
MUTI, SCL, SDA, P0 to P7
100
350
μA
Output amplitude level
236
295
354
mV
Input high-level current
I
IH
10
μA
V
I
= V
SS
, Schmitt inputs: TSL, RST, TEST1,
TEST2, BSTRI, DSTRI1, DSTRI2, DASL,
MUTI, SCL, SDA, P0 to P7
Input low-level current
I
IL
–10
μA
Output load resistance
R
L
AOUTL and AOUTR
5.0
k
DC Characteristics
at Ta = –20 to +75°C, V
DD
= 4.5 to 5.5 V, GND = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Resolution
RES
1 kHz 0 dB
16
Bits
Total harmonic distortion
THD1
1 kHz A mode, FS - 18 dB
*
0.08
%
THD2
1 kHz B mode, FS - 18 dB
*
0.05
%
Signal-to-noise ratio
S/N
1 kHz 0 dB
*
105
dB
Crosstalk
C. T
1 kHz 0 dB
*
95
dB
Full scale output voltage
VFS
2.8
3.0
3.2
Vp-p
D/A Converter Characteristics
at Ta = –20 to +75°C, V
DD
= 4.5 to 5.5 V, GND = 0 V
Note:
*
Values when measured in the Sanyo evaluation board and with a QPSK modulated signal (1 kHz sine wave) input.
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| LC7851E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:QPSK Demodulation and Audio Signal-Processing IC for Satellite Broadcast Reception |
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