Motorola MC13155D Datasheet

  

The MC13155 is a complete wideband FM detector designed for satellite
TV and other wideband data and analog FM applications. This device may
be cascaded for higher IF gain and extended Receive Signal Strength
Indicator (RSSI) range.

• 12 MHz Video/Baseband Demodulator

• Ideal for Wideband Data and Analog FM Systems

• Limiter Output for Cascade Operation

• Low Drain Current: 7.0 mA

• Low Supply Voltage: 3.0 to 6.0 V

• Operates to 300 MHz

Order this document by MC13155/D



WIDEBAND FM IF

SEMICONDUCTOR

TECHNICAL DATA

MAXIMUM RATINGS

Rating Pin Symbol Value Unit

Power Supply Voltage 11, 14 VEE (max) 6.5 Vdc
Input Voltage 1, 16 V
Junction Temperature – T
Storage Temperature Range – T

NOTE: Devices should not be operated at or outside these values. The “Recommended

Operating Conditions” provide for actual device operation.

in

J

stg

1.0 Vrms

+150 °C

– 65 to +150 °C

Figure 1. Representative Block Diagram

Buffered

Input

Input

16

RSSI

Decouple

1

Output

15

Three Stage

Amplifier

RSSI

Output

Limiter
Output

101213

9

Detector

8

Quad
Coil

Input

Decouple

VCC1
Output
Output

VCC2

Limiter Out

Quad Coil

16

1

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

PIN CONNECTIONS

1
2
3
4
5
6
7
8

(Top View)

16
15
14
13
12
11
10

9

Input
Decouple
VEE1

RSSI Buffer
RSSI
VEE2

Limiter Out
Quad Coil

7542

Decouple

NOTE: This device requires careful layout and decoupling to ensure stable operation.

Balanced

Outputs

Limiter
Output

MOTOROLA ANALOG IC DEVICE DATA

ORDERING INFORMATION

Operating

Device

MC13155D TA = – 40 to +85°C SO–16

 Motorola, Inc. 1996 Rev 1

Temperature Range

Package

1

MC13155

RECOMMENDED OPERATING CONDITIONS

Rating Pin Symbol Value Unit

Power Supply Voltage (TA= 25°C) 11, 14 V

–40°C ≤ TA ≤ 85°C 3, 6 V
Maximum Input Frequency 1, 16 f
Ambient Temperature Range – T

EE
CC

in

J

– 3.0 to – 6.0 Vdc

Grounded

300 MHz

– 40 to + 85 °C

DC ELECTRICAL CHARACTERISTICS (T

Characteristic

Drain Current 11 I

(VEE = – 5.0 Vdc) 14 I

(VEE = – 5.0 Vdc) 14 I
Drain Current Total (see Figure 3) 11, 14 I

(VEE = – 5.0 Vdc) 5.0 7.5 10.5

(VEE = – 6.0 Vdc) 5.0 7.5 10.5

(VEE = – 3.0 Vdc) 4.7 6.6 9.5

AC ELECTRICAL CHARACTERISTICS (T

Characteristic

Input for – 3 dB Limiting Sensitivity 1, 16 – 1.0 2.0 mVrms
Differential Detector Output Voltage (Vin = 10 mVrms) 4, 5 mV

(f

= ± 3.0 MHz) (VEE = – 6.0 Vdc) 470 590 700

dev

Detector DC Offset Voltage 4, 5 –250 – 250 mVdc
RSSI Slope 13 1.4 2.1 2.8 µA/dB
RSSI Dynamic Range 13 31 35 39 dB
RSSI Output 12 µA

(Vin = 100 µVrms) – 2.1 –

(Vin = 1.0 mVrms) – 2.4 –

(Vin = 10 mVrms) 16 24 36

(Vin = 100 mVrms) – 65 –

(Vin = 500 mVrms) – 75 –
RSSI Buffer Maximum Output Current (Vin = 10 mVrms) 13 – 2.3 – mAdc
Differential Limiter Output mVrms

(Vin = 1.0 mVrms) 7, 10 100 140 –

(Vin = 10 mVrms) – 180 –
Demodulator Video 3.0 dB Bandwidth 4, 5 – 12 – MHz
Input Impedance (Figure 14) 1, 16

@ 70 MHz Rp (VEE = – 5.0 Vdc) – 450 – Ω

@ 70 MHz Cp (C2=C15 = 100 p) – 4.8 – pF

Differential IF Power Gain 1, 7, 10, 16 – 46 – dB

NOTE: Positive currents are out of the pins of the device.

(VEE = – 5.0 Vdc) 450 570 680
(VEE = – 3.0 Vdc) 380 500 620

= 25°C, no input signal.)

A

Pin Symbol Min Typ Max Unit

11
14
14

Total

= 25°C, fIF = 70 MHz, VEE = – 5.0 Vdc Figure 2, unless otherwise noted.)

A

2.0 2.8 4.0 mA

3.0 4.3 6.0

3.0 4.3 6.0

5.0 7.1 10 mA

Pin Min Typ Max Unit

p–p

2

MOTOROLA ANALOG IC DEVICE DATA

MC13155

CIRCUIT DESCRIPTION

The MC13155 consists of a wideband three–stage limiting
amplifier, a wideband quadrature detector which may be
operated up to 200 MHz, and a received signal strength

Figure 2. T est Circuit

1.0n

V

in

Video

Output

Limiter 1

Output

49.9

1.0n

330

1

2

3

4

5

6

7

8

IN1

DEC1

VCC1

DETO1

DETO2

VCC2

LIMO1

indicator (RSSI) circuit which provides a current output
linearly proportional to the IF input signal level for
approximately 35 dB range of input level.

IN2

DEC2

VEE1

RSSI

Buffer

RSSI

VEE2

LIMO2

QUAD2QUAD1

16

15

14

13

12

11

10

1.0n

10n

1.0n

1.0n

1.0n

1.0n

9

100n

1.0k

100n

330

27

Limiter 2
Output

10

10

V

µ

µ

EE

+

V

EE

V

EE

+

APPLICATIONS INFORMATION

Evaluation PC Board

The evaluation PCB shown in Figures 19 and 20 is very
versatile and is designed to cascade two ICs. The center
section of the board provides an area for attaching all surface
mount components to the circuit side and radial leaded
components to the component ground side of the PCB (see
Figures 17 and 18). Additionally, the peripheral area
surrounding the RF core provides pads to add supporting
and interface circuitry as a particular application dictates.
This evaluation board will be discussed and referenced in
this section.

Limiting Amplifier

Differential input and output ports interfacing the three
stage limiting amplifier provide a differential power gain of
typically 46 dB and useable frequency range of 300 MHz.
The IF gain flatness may be controlled by decoupling of the
internal feedback network at Pins 2 and 15.

499

20p

L1

260n

L1 – Coilcraft part number 146–09J08S

Scattering parameter (S–parameter) characterization of
the IF as a two port linear amplifier is useful to implement
maximum stable power gain, input matching, and stability
over a desired bandpass response and to ensure stable
operation outside the bandpass as well. The MC13155 is
unconditionally stable over most of its useful operating
frequency range; however, it can be made unconditionally
stable over its entire operating range with the proper
decoupling of Pins 2 and 15. Relatively small decoupling
capacitors of about 100 pF have a significant effect on the
wideband response and stability. This is shown in the
scattering parameter tables where S–parameters are shown
for various values of C2 and C15 and at VEE of – 3.0 and
– 5.0 Vdc.

MOTOROLA ANALOG IC DEVICE DATA

3

TYPICAL PERFORMANCE AT TEMPERATURE

Figure 3. Drain Current versus Supply Voltage

10

TA = 25°C

8.0

6.0

4.0

, DRAIN CURRENT (mAdc)

Total

2.0

and I

14

I

0.0

0.0

1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 100 1000

I

= I14 + I

Total

VEE, SUPPLY VOLTAGE (–Vdc)

11

I

14

MC13155

(See Figure 2. T est Circuit)

Figure 4. RSSI Output versus Frequency and

100

80

µ

60

40

RSSI OUTPUT ( A)

12

I ,

20

0

10

Input Signal Level

VEE = – 5.0Vdc

0 dBm

–10 dBm

– 20 dBm

– 30 dBm

– 40 dBm

f, FREQUENCY (MHz)

Figure 5. T otal Drain Current versus Ambient

T emperature and Supply Voltage

8.5

8.0

7.5

7.0

6.5

TOTAL DRAIN CURRENT (mAdc)

6.0

14

5.5

and I ,

11

5.0

I

–50 – 30 –10 10 30 50 70 90 110 –50 – 30 –10 10 30 50 70 90 110

TA, AMBIENT TEMPERATURE (°C)

VEE = – 6.0 Vdc

– 3.0 Vdc

– 5.0 Vdc

Figure 7. RSSI Output versus Ambient

T emperature and Supply Voltage

µ

RSSI OUTPUT ( A)

12

I ,

25.0

24.5

24.0

23.5

23.0

22.5

22.0

VEE = – 6.0 Vdc

VEE = – 5.0 Vdc

VEE = – 3.0 Vdc

Figure 6. Detector Drain Current and Limiter

Drain Current versus Ambient Temperature

5.59.0
f = 70 MHz

5.0

VEE = – 5.0 Vdc

4.5

4.0

3.5

DRAIN CURRENT (mAdc)

3.0

11

2.5

14

I and I ,

2.0

TA, AMBIENT TEMPERATURE (

Figure 8. RSSI Output versus Input Signal

V oltage (Vin at Temperature)

100

TA = + 85°C

µ

RSSI OUTPUT ( A)

12

I ,

80

60

40

20

I

14

I

11

°

C)

+25°C

–40°C

21.5

4

0

– 30 –10 10 30 50 70 90 110 1.0 10 100 1000

–50

0.1
Vin, INPUT VOLTAGE (mVrms)TA, AMBIENT TEMPERATURE (°C)

MOTOROLA ANALOG IC DEVICE DATA

MC13155

Figure 9. Differential Detector Output
V oltage versus Ambient Temperature

and Supply V oltage

750 220
700
650
600

pp

550
500

(Pins 4, 5), (mV )

450
400

DIFFERENTIAL DETECTOR OUTPUT VOLTAGE

350

–50 – 30 –10 10 30 50 70 90 110

VEE = – 6.0 Vdc

– 5.0 Vdc

– 3.0 Vdc

Figure 11A. Differential Detector Output Voltage

versus Q of Quadrature LC Tank

)

1600

Vin = – 30 dBm

pp

VEE = – 5.0 Vdc

1400

fc = 70 MHz
f

1200
1000

800
600
400
200

DIFFERENTIAL DETECTOR OUTPUT (mV

= 1.0 MHz

mod

(Figure 16 no external capacitors
between Pins 7, 8 and 9, 10)

0

1.5

2.5 3.5 4.5 5.5

2.0 3.0 4.0 5.0 6.0 1.5 2.5 3.5 4.5 5.52.0 3.0 4.0 5.0 6.0
Q OF QUADRATURE LC TANK

f

= ±6.0 MHz

dev

±

5.0 MHz

±

4.0 MHz

±

3.0 MHz

±

2.0 MHz

±

1.0 MHz

Figure 10. Differential Limiter Output Voltage

versus Ambient T emperature

(Vin = 1 and 10 mVrms)

f = 70 MHz
VEE = – 5.0 Vdc

200

180

160

(Pins 7, 10), (mVrms)

140

DIFFERENTIAL LIMITER OUTPUT VOLTAGE

120

–50 – 30 –10 10 30 50 70 90

TA, AMBIENT TEMPERATURE (°C)TA, AMBIENT TEMPERATURE (°C)

Vin = 10 mVrms

Vin = 1.0 mVrms

Figure 11B. Differential Detector Output Voltage

versus Q of Quadrature LC Tank

)

2400

Vin = – 30 dBm

pp

2000

1600

1200

800

400

0

DIFFERENTIAL DETECTOR OUTPUT (mV

VEE = – 5.0 Vdc
fc = 70 MHz
f

= 1.0 MHz

mod

(Figure 16 no external capacitors
between Pins 7, 8 and 9, 10)

Q OF QUADRATURE LC TANK

f

= ±6.0 MHz

dev

±

5.0 MHz

±

4.0 MHz

±

3.0 MHz

±

2.0 MHz

±

1.0 MHz

Figure 11.

Figure 12. RSSI Output V oltage versus IF Input

0

VEE = – 5.0 Vdc
fc = 70 MHz

–1.0

(See Figure 16)

–2.0

–3.0

–4.0

–5.0

RSSI OUTPUT VOLTAGE, (Vdc)

–80 –60 –40 –20 0 20

Capacitively coupled
interstage: no attenuation

15 dB Interstage
Attenuator

IF INPUT, (dBm)

MOTOROLA ANALOG IC DEVICE DATA

Figure 13. – S+N, N versus IF Input

10

0

–10
–20
–30

S+N, N (dB)

–40

fc = 70 MHz

–50

f

= 1.0 MHz

mod

±

5.0 MHz

f

=

dev

–60

VEE = – 5.0 Vdc

–70

–90 – 70 – 50 – 30 –10 10

IF INPUT (dBm)

S+N

N

5