U4313B

U4313B TEMIC | Alldatasheet

Document overview

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Technical content

Features

/C0068Usable for amplitude- and frequency-modulated transmission systems /C0068Extremely low quiescent current approximately 1 mA in the stand-by mode due to wake-up concept /C0068Wide power supply voltage range 3 to 13 V /C0068Sensitive IF-amplifier for 10.7 MHz operating frequency /C0068Logarithmic AM demodulator /C0068FM demodulator /C0068Monoflop exit to wake up a microcontroller /C0068High performance operational amplifier to realize a data recovering filter /C0068Inverting clamping comparator with amplitude- depending hysteresis for data regeneration Block Diagram Inveting clamping comparator MonoflopBandgap Quadrature detector Operational amplifier IF amplifier Internal RF Level Wake up 10 3 Wake up out V S 16 114128 Data out Data filter FM outlog AM out

10.7 MHz

V Ref = 2.4V 95 10213 V Ref = 2.4 V Figure 1. Block diagram

Figure 2. Pin description

1 OP in+ OP amplifier non inverted input

2 OP out OP amplifier output

3 RC wake RC wake up reset time

4 GND2 Ground of the logical circuits

5 Comp out Inverting comparator output

6 RC– Comparator time constant

7 RC+ Comparator time constant

8 AM out AM current output

9 IFin IF input

10 SW out Wake up output

11 GND1 Ground of the analog circuits

12 Discr FM discriminator tank

13 V Ref Reference voltage

14 FM out FM discriminator output

15 V S Supply voltage

16 OP in– OP amplifier inverted input

TELEFUNKEN Semiconductors U4313B Rev. A1: 23.06.1995 3 (14)

Electrical Characteristics

V S = 5 V , Tamb = 25°C, fin = 10.7 MHz; FM part: fmod = 1 kHz, fdev = 22.5 kHz; AM part:, fmod = 1 kHz, m = 100% unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Characteristics Supply voltage range Pin 15 V S 3 12 V Quiescent supply current Pin 15 Iq 1 1.3 mA Active supply current Pin 15 Iact 2.8 3.6 mA Bandgap Regulated voltage Pin 13 V ref 2.3 2.4 2.5 V Output current Pin 13 Iref 5 mA Source resistance Pin 13 R Ref 2.3 5 /C0087 External capacitor Pin 13 C ref 10 /C0109F Power supply suppression f = 50 Hz Pin 13 psrr 60 dB IF amplifier Input resistance Pin 9 R in 180 330 520 /C0087 Input capacitance Pin 9 C in 5 pF Typical internal 3 dB frequency IF level 70 dB/C0109V Pins 9 and 14 f3dB 8 12 MHz –3 dB limiting point Pin 9 V FM3dB 30 dB /C0109V Recovered data voltage Pin 14 V FMout 50 130 230 mV FM detector output resistance Pin 14 R FMout 50 k/C0087 AM rejection ratio m = 30% Pins 9 and 14 AM rr 25 dB Maximum AM input voltage Pin 9 VAMmax 90 dB /C0109V AM quiescent current Pin 8 IAMout 10 22 37 /C0109/C0065 Maximum AM current Pin 8 IAMoutmax 100 /C0109/C0065 Operational amplifier Gain bandwidth product Pins 1, 2 and 16ft 3 4 6.5 MHz Excess phase Pins 1, 2 and 16/C0100 80 degree Open loop gain Pins 1, 2 and 16g0 50 70 95 dB Output voltage range Pin 2 ΔVout 1.55 V Common mode input voltage Pins 1 and 16 V in 0.7 1.7 V Input offset voltage Pins 1 and 16 Vos –2.5 0 +2.5 mV Maximum output current Pin 2 Iout 5 mA Common mode rejection ratio Pins 1 and 16 cmrr 65 85 dB Total harmonic distortionV in < 300 mV , f = 33 kHz, unity gain circuit Pin 2 thd 1 3 % Power supply rejection ratio f = 50 Hz Pin 2 psrr 65 85 dB

TELEFUNKEN SemiconductorsU4313B Rev. A1: 23.06.19954 (14) Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Clamping comparator Typical common mode input voltage range Pin 2 V cmvr 0.8 1.6 V Maximum distortion voltage V signal = 100 mV , C+ = C– = 200 nF, f disto = 50 Hz, fsignal = 1 kHz Pin 2 V dmax 200 mV Output voltage V 2 > (V6 + V7) /2 (10 k/C0087 load to VRef) Pin 5 V cout 0 150 250 mV 1) Output voltage V 2 < (V6 + V7) /2 (10 k/C0087 load to VRef) Pin 5 V cout V Ref Wake up circuit Minimum wake up level Pin 9 V in 40 dB /C0109V 2) Internal charging resistor Pin 3 R int 1.5 k/C0087 Threshold voltage Pin 3 V th 1.6 V Output switch current Pin 10 ISW 180 250 550 /C0109A Output switch voltage Pin 10 V SW 5.5 V 3) External wake up resistor Pins 3 and 13 RWU 22 k/C0087 External wake up capacitor Pins 3 and 13 C WU 10 /C0109F Hold time (± 30%) th /C0025 1.5 /C0032 RWU /C0032 CWU s 4) Delay time (± 30%) td /C0025 C WU /C0032 0.75 k/C0087 s 4) 1) IC version with non-inverting comparator available: U4311B 2) Measured at Pin 9, referred to 330 /C0087 3) Protected by a Z-diode, see figure 13 4) Valid for 0.1 /C0109F ≤ CWU ≤ 10 /C0109F and 22 k/C0087 ≤ RWU ≤ 680 k/C0087 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 /C0042 and in a FM-system additionally the discriminator amplitude characteristic (figure 28) /C0042 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.

data comparator and voltage-regulator. pin 10 and can be used to wake up a microcontroller. supply current increases up to typically 2.8 mA. Figure 3. Principle function of the clamping comparator

TELEFUNKEN SemiconductorsU4313B Rev. A1: 23.06.199512 (14) 350 /C0109A350 /C0109A V S RF in 1 mA Data out Signal path Power supply 95 10137 Figure 29. Principle diagram UHF remote control receiver

Ordering Information

Extended Type Number Package Remarks U4313B-A DIP16 U4313B-AFL SO16L

TELEFUNKEN Semiconductors U4313B Rev. A1: 23.06.1995 13 (14) Dimensions in mm 94 9128 94 8961

TELEFUNKEN SemiconductorsU4313B Rev. A1: 23.06.199514 (14) Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423