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參數(shù)資料
| 型號： | U4313B-A |
| 英文描述： | Low-Current Superhet Remote Control Receiver |
| 中文描述： | 低電流超外差遙控接收器 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 167K |
| 代理商： | U4313B-A |
TELEFUNKEN Semiconductors
U4313B
Rev. A1: 23.06.1995
4 (14)
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Clamping comparator
Typical common mode
input voltage range
Maximum distortion
voltage
Pin 2
V
cmvr
0.8
1.6
V
V
signal
= 100 mV,
R+ = R– = 50 k ,
C+ = C– = 200 nF,
f
disto
= 50 Hz,
f
signal
= 1 kHz
V
2
> (V
6
+ V
7
) /2
(10 k load to V
Ref
)
Pin 2
V
dmax
200
mV
Output voltage
Pin 5
V
cout
0
150
250
mV
1)
Output voltage
V
2
< (V
6
+ V
7
) /2
(10 k load to V
Ref
)
Pin 5
V
cout
V
Ref
Wake up circuit
Minimum wake up level
Internal charging resistor
Threshold voltage
Output switch current
Output switch voltage
External wake up resistor
External wake up capacitor
Hold time (
±
30%)
Delay time (
±
30%)
Pin 9
Pin 3
Pin 3
Pin 10
Pin 10
Pins 3 and 13
Pins 3 and 13
V
in
R
int
V
th
I
SW
V
SW
R
WU
C
WU
t
h
t
d
40
1.5
1.6
250
dB V
2)
k
V
A
V
3)
k
F
s
4)
s
4)
180
550
5.5
22
10
1.5
C
WU
R
WU
C
WU
0.75 k
1)
IC version with non-inverting comparator available: U4311B
2)
Measured at Pin 9, referred to 330
3)
Protected by a Z-diode, see figure 13
4)
Valid for 0.1 F
≤
C
WU
≤
10 F and 22 k
≤
R
WU
≤
680 k
Application
The U4313B is well-suited to implement UHF remote
control or data transmission systems, based on a low
current superheterodyne receiver concept. SAW-devices
may be used in the transmitter as well as in the receiver
local oscillator. The front end should be a discrete circuit
application with low-current UHF transistors like S822T
or S852T from TEMIC TELEFUNKEN microelectronic
GmbH. The frequency of the local oscillator can be deter-
mined either by coaxial resonators or SAW-devices. Due
to large SAW-resonator tolerance an IF-bandwidth
and
in a FM-system additionally the discriminator amplitude
characteristic (figure 28)
of 300 kHz or higher is pro-
posed. As the circuit needs only 3.0 V supply voltage for
operation, the front end may be a stacked design in order
to achieve a total receiver current consumption of approx-
imately 1 mA. Figure 29 shows a principle receiver
concept diagram. The application notes ANT012,
ANT013 and ANT015 contain more detailed information
on complete RF links.
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