Datasheet > MC13142DR2

MC13142DR2

更新时间： 2024-01-11 13:12:57

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		蜂窝光电二极管
页数	文件大小	规格书
49页	988K
描述
TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO16, PLASTIC, SO-16

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MC13142DR2 数据手册

MC13142

Figure 2. Circuit Side Component Placement View

MC13142D

Rev A

Mix In

Mix Lin Cont

Toko

926A10

Dielectric

Filter

Out

16:1

Impedance

Transformer

LNA

Output

100 p

18 nH

Rotary

MC13142D

Switch

2.4 p

47 p

6.8 nH

100 p

390 nH

LNA

Input

Buf

Out

5.6 p

33 k

MMBV809

120 k

V–Cont

NOTES: The PCB is laidout for the 4DFA (2 pole SMD type) and 4DFB (3 pole SMD type) filters which are available for applications in

cellular and GSM,GPS (1.2–1.5 GHz), DECT, PHS and PCS (1.8–2.0 GHz) and ISM Bands (902–928 MHz and 2.4–2.5 GHz).

In the component placement shown above, the 926.5 MHz dielectric type image filter is used (Toko Part # 4DFA–926A10).

The PCB also accommodates a surface mount SAW filter in an eight or six pin ceramic package for the cellular base and

handset frequencies. Recommended manufacturers are Siemens and Murata.

Traces are provided on the PCB to evaluate the LNA and mixer separately. The component placement view shows external

circuit components used for the 926.5 MHz application circuit. Note: some traces must be cut to accommodate placement of

components; likewise some traces must be shorted. The voltage controlled oscillator is shown with the varactor referenced to

ground. The PCB is modified as shown to do this.

16:1 broadband impedance transformer is mini circuits part #TX16–R3T; it is in the leadless surface mount “TX” package.

Components L and C comprise a low pass filter used to provide narrowband matching at a given IF frequency. For example at

49 MHz C = 36 p and L = 330 nH.

The microstrip trace on the ground side of the PCB is intended for a microstrip resonator; it is cut free when using a lump

inductor as done above.

8–241

MOTOROLA ANALOG IC DEVICE DATA

1...4 5 678 9 10...49

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