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參數(shù)資料
| 型號： | U2740B |
| 英文描述： | UHF AM/FM Transmitter |
| 中文描述： | 超高頻調(diào)幅/調(diào)頻發(fā)射機 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 264K |
| 代理商： | U2740B |
U2740B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A3, 24-Feb-97
5 (10)
Electrical Characteristics DC
All voltages referred to GND (Pin 5), V
S
= 2.4 to 5.5 V, T
amb
= –40 to +85
°
C, unless otherwise specified
Parameters
Test Conditions / Pins
V
11
= 0, I
16
= 0, V
S
= 3 V
Symbol
Min.
Typ.
Max.
Unit
Supply current
(power-down)
Pin 12
S OFF
I
S, OFF
0.05
0.25
A
V
11
= 0, I
16
= 0, V
S
= 5.5 V
Pin 12
0.1
0.5
A
Supply current
pp y
(power-up, transmit space)
V
16
= 0 V, V
11
= V
S
V
16
= 0 V, V
11
= 3 V,
V
S
= 3 V, T
amb
= 25
°
C,
I
S, ON
5.0
8.0
mA
Pin 12
I
S, ON
4.5
5.0
6.5
mA
V
16
= 0 V, V
11
= 5.5 V,
V
S
= 5.5 V, T
amb
= 25
°
C,
Pin 12
I
S, ON
4.5
5.8
7.2
mA
Temperature coefficient of
supply current
1)
Supply current
(power-up, transmit mark)
TKI
0.18
%/K
V
16
= 3 V, V
11
= 3 V,
V
S
= 3 V, T
amb
= 25
°
C,
Pin 12
Pin 11
Pin 11
Pin 11
Pin 11
Pin 6
Pin 4
8
11
13.5
mA
Power-down voltage
Power-up voltage
Power-up current
V
16
= 0 V
V
16
= 0 V
V
11
= 3 V
V
11
= 5.5 V
V
6
= 3 V
V
11, OFF
V
11, ON
0.4
V
V
1.0
11 ON
I
11, ON
40
110
16
65
150
25
A
Input current FM_in
Output current
Lock-detect
Output current XTO_out
Input current AM_in
2)
I
6
A
I
4
1
Pin 10
I
10
1
mA
R16 = 0 connected to
V
S
= 3 V,
T
amb
= 25
°
C
T
amb
= 85
°
C
Pin 16
I
16
0.40
0.44
0.50
0.55
0.60
0.65
mA
mA
Notes:
1)
There are circuit parts with increasing supply current over temperature. The resulting supply current is
IS(T
amb
) = I
SDN
(1 + (T
amb
– 25
°
C)
TKI)
2)
This depends on the value of resistor R16 connected to V
S
. If the supply voltage is 2.0 to 3.5 V, Pin 16 can
be directly connected to V
S
. For V
S
= 5 V, R16 should be 3.9 k .
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| U2740B-BFP | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:UHF AM/FM Transmitter |
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