u2740b ETC-unknow, u2740b Datasheet - Page 5

• Manufacturer Part Number: u2740b
• Description: Am/fm Transmitter
• Manufacturer: ETC-unknow

TELEFUNKEN Semiconductors
Rev. A3, 24-Feb-97
Electrical Characteristics DC
All voltages referred to GND (Pin 5), V
Notes:
1)
2)
Supply current
(power-down)
(p
Supply current
(power-up, transmit space) V
Temperature coefficient of
supply current
Supply current
(power-up, transmit mark)
Power-down voltage
Power-up voltage
Power-up current
Input current FM_in
Output current
Lock-detect
Output current XTO_out
Input current AM_in
pp y
There are circuit parts with increasing supply current over temperature. The resulting supply current is
IS(T
This depends on the value of resistor R16 connected to V
be directly connected to V
Parameters
p
amb
)
1)
) = I
SDN
2)
(1 + (T
V
V
V
V
V
V
TKI
V
V
V
V
V
V
V
R16 = 0 connected to
V
T
T
amb
amb
11
11
16
16
S
16
S
16
S
16
16
11
11
6
S
amb
Test Conditions / Pins
= 3 V
= 3 V, T
= 5.5 V, T
= 3 V, T
= 3 V,
= 0, I
= 0, I
= 0 V, V
= 0 V, V
= 0 V, V
= 3 V, V
= 0 V
= 0 V
= 3 V
= 5.5 V
S
= 25 C
= 85 C
. For V
– 25 C)
Preliminary Information
16
16
S
amb
amb
= 2.4 to 5.5 V, T
= 0, V
= 0, V
11
11
11
11
amb
S
Pin 16
= 5 V, R16 should be 3.9 k
= V
= 3 V,
= 25 C,
= 5.5 V,
= 3 V,
= 25 C,
= 25 C,
TKI)
S
S
S
= 3 V
= 5.5 V
Pin 12
Pin 12
Pin 12
Pin 12
Pin 12
Pin 11
Pin 11
Pin 11
Pin 11
Pin 6
Pin 4
Pin 10
amb
V
= –40 to +85 C, unless otherwise specified
Symbol
V
I
I
I
I
I
I
I
S OFF
S, OFF
11 ON
11, ON
11, OFF
S, ON
S, ON
S, ON
11, ON
I
I
I
I
10
16
6
4
S
. If the supply voltage is 2.0 to 3.5 V, Pin 16 can
W
.
Min.
0.40
0.44
4.5
4.5
1.0
8
Typ.
0.05
0.18
0.50
0.55
110
0.1
5.0
5.0
5.8
40
16
11
U2740B
Max.
0.25
13.5
0.60
0.65
150
0.5
8.0
6.5
7.2
0.4
65
25
1
1
Unit
%/K
mA
mA
mA
mA
mA
mA
mA
m
m
m
m
m
V
V
5 (10)
A
A
A
A
A