www.lansdale.com

Page 1 of 17

Issue 0

ML13145

UHF Wideband Receiver Subsystem

(LNA, Mixer, VCO, Prescaler, IF

Subsystem, Coiless Detector)

Legacy Device: Motorola MC13145

The ML13145 is a dual conversion integrated RF receiver intended for ISM

band applications. It features a Low Noise Amplifier (LNA), two 50 Ω linear

Mixers with linearity control, Voltage Controlled Oscillator (VCO), second

LO amplifier, divide by 64/65 dual modulus Prescalar, split IF Amplifier and

Limiter, RSSI output, Coilless FM/FSK Demodulator and power down con-

trol. Together with the transmit chip (ML13146) and the baseband chip

(MC33410 or MC33411A/B), a complete 900 MHz cordless phone system

can be implemented. This device may be used in applications up to 1.8 GHz,

and operating temperature TA = –20° to +70°C.

• Low (<1.8 dB @ 900 MHz) Noise Figure LNA with 14 dB Gain

• Externally Programmable Mixer linearity: IIP3 = 10(nom.) to 17 dBm

(Mixer1); IIP3 = 10 (nom.) to 17 dBm (Mixer2)

• 50 Ω Mixer Input Impedance and Open Collector Output (Mixer 1 and

Mixer 2); 50 Ω Second LO (LO2) Input Impedance

• Low Power 64/65 Dual Modulus Prescalar (ML12054A type)

• Split IF for Improved Filtering and Extended RSSI Range

• Internal 330 Ω Terminations for 10.7 MHz Filters

• Linear Coilless FM/FSK Demodulator with Externally Programmable Bandwidth,

Center Frequency and Audio level

•2.7 to 6.5 V Operation, Low Current Drain (<27 mA, Typ @ 3.6 V) with Power Down

Mode (<10 µA, Typ)

•2.4 GHz RF, 1.0 GHz IF1 and 50 MHz IF2 Bandwidth

LQFP 48 = -9P

PLASTIC PACKAGE

CASE 932

48

1

CROSS REFERENCE/ORDERING INFORMATION

MOTOROLA

LQFP 48

MC13145FTA

ML13145-9P

LANSDALE

PACKAGE

Note: Lansdale lead free (Pb) product, as it

becomes available, will be identified by a part

number prefix change from

ML to MLE.

PIN CONNECTIONS AND FUNCTIONAL BLOCK DIAGRAM

VEE

BWadj

Lim Dec2

Lim Dec1

Lim In

VCC

VCC

IF Out

VEE

LNA In

VEE

VEE

LNA Out

VEE

Mxr1In

Lin Adj1

13

14

15

16

18

19

20

48

47

46

45

44

43

42

41

25

26

29

30

31

32

27

28

12

11

8

7

6

5

10

9

Enable

oscC

oscE

oscB

4

3

2

1

33

34

35

36

IF Dec2

IF Dec1

IF In

VEE

40

39

38

37

17

21

22

23

24

Lim

Demod

LNA

/64, 65

IF

LO

RF

IF2

IF1

ESD Sensitive —

Handle with Care

This device contains

626 active transistors.

LOW POWER INTEGRATED RECEIVER FOR ISM BAND APPLICATIONS

SEMICONDUCTOR TECHNICAL DATA