參數資料
型號： LV25450PNW
元件分類： 調諧器
英文描述： AUDIO TUNER, PQFP64
封裝： 10 X 10 MM, SQFP-64
文件頁數： 23/40頁
文件大小： 1251K
代理商： LV25450PNW
LV25450PNW
Power on/Power off Timing and the Power on Reset
Recommended Operating Ratings at Ta = 25°C, GND = 0V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Vcop H
Pin 3, 27, 35, 54, 55, 61
7.5
8.5
V
Operating supply voltage
Vcop L
Pin 16, 25, 41
4.5
5.5
V
VREG3
Pin 26
2.7
3.3
V
Internal logic voltage
VREG4
Pin 15
3.7
4.3
V
Power application time
(8.0 V
→ 5.0 V)
T7
10
100
ms
Vhmin3
Pin 26 : Design reference value
VREG3
2.2
V
Internal register retention voltage
Vhmin4
Pin 15 : Design reference value
VREG4
2.2
V
Internal register reset voltage
Voff
Pin 16, 25, 41 : Design reference value
0
0.2
V
Internal register reset power
supply rise time
tPOR
Pin 16, 25, 41 : Design reference value
0.05
3
ms
Power application time
(5.0 V
→ 8.0 V)
T14
10
100
ms
Power-on Sequence and Power-on Reset
(1) Power on image and power on reset
Recommended Operating Ratings at Ta = 25°C, GND = 0V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Vcop H
Pins 3, 27, 35, and 61
7.5
8.5
V
Operating supply voltage
Vcop L
Pins16, 25, and 41
4.5
5.5
V
VREG3
Pin 26
2.7
3.3
V
Internal logic voltage
VREG4
Pin 15
3.7
4.3
V
Vhmin3
Pin 26 : Design reference value
2.2
VREG3
V
Internal register retention voltage
Vhmin4
Pin 15 : Design reference value
2.2
VREG4
V
Internal register reset voltage
Voff
Pins 16, 25, and 41 : Design reference value
0
0.2
V
Internal register reset power
supply rise time
tPOR
Pins 16, 25, and 41 : Design reference value
0.05
3
ms
Note 1 : When reading out data from pin D0 connection (e.g., E2PROM) with the voltage at the pin 23 below 2.2V, be sure to read the data after transmitting
the control data and pin D0 being set “open” because the state of internal register cannot be specified.
Note 2 : It is necessary to set data when power is first applied or there is a momentary power interruption.
VCC_8Vop
VCC_5Vop
VREG4
VREG3
Vhmin3
Vhmin4
Voff
tPOR
Image of Supply Voltage
No.A1668-3/40
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