U2740B Datasheet, PDF (5/10 Pages) TEMIC Semiconductors – UHF AM/FM Transmitter

U2740B
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
Symbol Min.
Typ.
Max.
Unit
Supply current
(power-down)
V₁₁ = 0, I₁₆ = 0, V_S = 3 V
Pin 12
V₁₁ = 0, I₁₆ = 0, V_S = 5.5 V
Pin 12
I_{S, OFF}
0.05
0.25
mA
0.1
0.5
mA
Supply current
V₁₆ = 0 V, V₁₁ = V_S
I_{S, ON}
5.0
8.0
mA
(power-up, transmit space) _{V16 = 0 V, V11 = 3 V,}
V_S = 3 V, T_amb = 25°C,
I_{S, ON}
4.5
5.0
6.5
mA
Pin 12
V₁₆ = 0 V, V₁₁ = 5.5 V,
V_S = 5.5 V, T_amb = 25°C,
I_{S, ON}
4.5
5.8
7.2
mA
Pin 12
Temperature coefficient of TKI
supply current ¹⁾
0.18
%/K
Supply current
V₁₆ = 3 V, V₁₁ = 3 V,
(power-up, transmit mark) V_S = 3 V, T_amb = 25°C,
Pin 12
8
11
13.5
mA
Power-down voltage
Power-up voltage
Power-up current
Input current FM_in
Output current
Lock-detect
V₁₆ = 0 V
V₁₆ = 0 V
V₁₁ = 3 V
V₁₁ = 5.5 V
V₆ = 3 V
Pin 11 V_{11, OFF}
0.4
V
Pin 11 V_{11, ON}
1.0
V
Pin 11
Pin 11
Pin 6
I_{11, ON}
I₆
40
65
mA
110
150
16
25
mA
Pin 4
I₄
1
Output current XTO_out
Pin 10
I₁₀
Input current AM_in ²⁾ R16 = 0 connected to
V_S = 3 V, Pin 16
I₁₆
T_amb = 25°C
T_amb = 85°C
1
mA
0.40
0.50
0.60
mA
0.44
0.55
0.65
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)
W ^{This depends on the value of resistor R16 connected to VS. 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 .
TELEFUNKEN Semiconductors
5 (10)
Rev. A3, 24-Feb-97
Preliminary Information