MC13145FTA datasheet(10/17 Pages) LANSDALE

部品番号	MC13145FTA

部品情報	UHF Wideband Receiver Subsystem

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LANSDALE Semiconductor, Inc.

ML13145

Figure 4. IF Amplifier Functional Diagram

IF Dec1

39

IF In

38

IF Dec2

40

IF Out

41

Σ

RSSI

Symbol/Type

Description

43

VCC

See Figure 5.

VCC, Positive Supply Voltage

44

Lim In

Limiting Amplifier Input

Limiting amplifier input source impedance is 330 Ω.

This amplifier has 84 dB of gain with 3.0 dB

bandwidth of 40 MHz; this enables the IF and

limiting ampliers chain to hard limit on noise.

45, 46

Lim Dec1,

Lim Dec2

If Decoupling

These pins are decoupled to VCC to provide stable

operation of the 2nd IF limiting amplifier.

7

RSSI

The RSSI circuitry in the 2nd, 3rd, & 4th amplifier

stages outputs a current when the output of the

previous stage enters limiting. The net result is a

RSSI current which represents the logarithm of the

IF input voltage. An external resistor to ground is

used to provide a voltage output.

Figure 5. Limiter Amplifier Functional Diagram

Lim Dec1

45

Lim In

44

Lim Dec2

46

RSSI

7

Σ

Lim+

Lim–

Demod

同様の部品番号 - MC13145FTA

メーカー	部品番号	データシート	部品情報
LANSDALE Semiconductor ...	MC13145FTA	2Mb / 17P	UHF Wideband Receiver Subsystem (LNA, Mixer, VCO, Prescaler, IF Subsystem, Coiless Detector)

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同様の説明 - MC13145FTA

メーカー	部品番号	データシート	部品情報
LANSDALE Semiconductor ...	ML13145	2Mb / 17P	UHF Wideband Receiver Subsystem (LNA, Mixer, VCO, Prescaler, IF Subsystem, Coiless Detector)
Motorola, Inc	MC13145	231Kb / 6P	UHF Wideband Receiver Subsystem (LNA, Mixer, VCO, Prescaler, IF Subsystem, Coiless Detector)
Analog Devices	AD6676	2Mb / 90P	Wideband IF Receiver Subsystem
Analog Devices	AD6676	1Mb / 90P	Wideband IF Receiver Subsystem
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NTE Electronics	NTE787	24Kb / 3P	Integrated Circuit AM Receiver Subsystem
Quanzhou Jinmei Electro...	PRF949	117Kb / 16P	UHF wideband transistor
NXP Semiconductors	PBR941	121Kb / 16P	UHF wideband transistor 1998 Aug 10
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Quanzhou Jinmei Electro...	PBR941B	160Kb / 13P	UHF wideband transistor