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參數(shù)資料
| 型號： | MC44355DTB |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費家電 |
| 英文描述： | MULTI.STANDARD AND PAL/NTSC MODULATOR ICs |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 438K |
| 代理商： | MC44355DTB |
MC44353 MC44354 MC44355
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(continued)
(Parameter Type: A–100% Tested, B–100% Correlation Tested, C–Characterized on
Samples. D–Design Parameter, VCC = 5.0 V, TA = 25C, Video input 1.0 Vpp, 10 step greyscale. Step 3 [typ. 80%] modulation depth for
PAL; Step 5 [typ 90%] modulation for SECAM L; P/S ration Step 3 [typ 14.5 dB]. RF output into 75
load. Unless otherwise noted.)
(Specifications only valid for envelope demodulation.)
Characteristic
Type
Unit
Max
Typ
Min
Symbol
UHF Comparator Pump Current (Note 1)
2.0
4.0
6.0
μ
A
A
Sound Comparator Pump Current (Note 2)
2.0
3.8
5.6
μ
A
A
Op–Amp Input Current
–
–
20
nA
A
Oscillator Stability – negative resistance
1.0
–
–
k
D
Delay VCCA/D to VCC Mod Application (See Figure 2)
VCCA/D & VCC Mod Duration for Standby Mode Function
(See Figure 2)
t_sup_del
0
–
–
ns
D
t_sup_min
30
–
–
ms
D
NOTES:
1.Current sources driven by the UHF phase comparactor, that are connected to Pin 1.
2.Current sources driven by the phase sound comparator, that are connected to Pin 8.
VCCA/D
VCCmod
5.0 V
0 V
0 V
t_sup_min
t_sup_del
time
0 V
5.0 V
Figure 2. Initial Power–On and Standby Mode VCC Timing Diagram
For proper operation of internal reset functions, VCCA and
VCCD (which must be applied simultaneously) may not be
applied after VCCmod.
Normally, all VCC lines will come up at the same time.
However, due to the possibility of a Standby VCC to be
applied to the VCCmod pin, care should be ensured that
VCCmod s not applied before VCCA and VCCD (which must be
tied together). See the timing diagram and DATA
RETENTION function description.
Note hat VCCA/D and VCCmod must be activated above 4.5
V for a least 30 msecs before the device can operate
correctly in Standby Mode.
HIGH SPEED I2C COMPATIBLE BUS CHARACTERISTICS
(Over Functional Temperature Range – VCC = 5.0 V)
Characteristic
Symbol
Min
Typ
Max
Unit
Type
SDA/SCL Output Current at 0 V
–
–
10
μ
A
A
SDA/SCL Low Input Level
Vil
Vih
–
–
1.5
V
B
SDA/SCL High Input Level
3.0
–
–
V
B
SDA/SCL Input Current for Input Level from 0.4 V to 0.3 VCC
SDA/SCL Input Level
–5.0
–
5.0
μ
A
C
0
–
VCC
+ 0.3
V
D
SDA/SCL Capacitance
Ci
–
–
10
pF
C
ACK Low Output Level (sinking 3.0 mA)
–
0.3
1.0
V
A
ACK Low Output Level (sinking 15 mA)
–
–
1.5
V
C
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