U4311BM, U4311BMFL, U4313B Selling Leads, Datasheet
MFG:tfk Package Cooled:tfk D/C:dc97
U4311BM, U4311BMFL, U4313B Datasheet download
Part Number: U4311BM
MFG: tfk
Package Cooled: tfk
D/C: dc97
U4311BM, U4311BMFL, U4313B
- Table of contents:
Info of U4311BM
Info of U4311BMFL
Info of U4313B
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About U430
PDF/DataSheet Download
Datasheet: U430
File Size: 54553 KB
Manufacturer: VISAY [Vishay Siliconix]
Download : Click here to Download
About U430
PDF/DataSheet Download
Datasheet: U430
File Size: 54553 KB
Manufacturer: VISAY [Vishay Siliconix]
Download : Click here to Download
About U4313B
PDF/DataSheet Download
Datasheet: U4313B
File Size: 171258 KB
Manufacturer: TEMIC [TEMIC Semiconductors]
Download : Click here to Download
U4313B General Description
The U4313B is a monolithic integrated circuit in bipolar technology for low-current UHF remote control uperheterodyne
receivers in amplitude- or frequencymodulated mode. Typical applications are keyless carlock-, alarm or telecontrol remote indication systems. Especially for automotive applications it supports a superhet design with less than 1 mA total current consumption, as required by the car manufacturers.
U4313B Maximum Ratings
|
Parameters |
Symbol |
Value |
Unit |
| Supply voltage |
VS |
13 |
V |
| Power dissipation at Tamb = 85°C |
Ptot |
400 |
mW |
| Junction temperature |
Tj |
125 |
|
| Ambient temperature range |
Tamb |
40 to +105 |
|
| Storage temperature range |
Tstg |
55 to +125 |
U4313B Features
· Usable for amplitude- and frequency-modulated transmission systems
· Extremely low quiescent current approximately 1 mA in the stand-by mode due to wake-up concept
· Wide power supply voltage range 3 to 13 V
· Sensitive IF-amplifier for 10.7 MHz operating frequency
· Logarithmic AM demodulator
· FM demodulator
· Monoflop exit to wake up a microcontroller
· High performance operational amplifier to realize a data recovering filter
· Inverting clamping comparator with amplitudedepending hysteresis for data regeneration
U4313B Typical 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 determined 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 proposed.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 approximately 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.
U4313B Connection Diagram
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