SL6440 Ver la hoja de datos (PDF) - Zarlink Semiconductor Inc

Número de pieza

componentes Descripción

Fabricante

SL6440

High Level Mixer

Zarlink Semiconductor Inc 

SL6440

HIGH LEVEL MIXER

The SL6440 is a double balanced mixer intended for use in

radio systems up to 150MHz. A special feature of the circuit

allows external selection of the DC operating conditions by

means of a resistor connected between pin 11 (bias) and Vcc

When biased for a supply current of 50mA the SL6440 offers

a 3rd order intermodulation intercept point of typically

+30dBm, a value previously unobtainable with integrated

circuits. This makes the device suitable for many applications

where diode ring mixers had previously been used and offers

the advantages of a voltage gain, low local oscillator drive

requirement and superior isolation.

FEATURES

s +30dBm Input Intercept Point

s +15dBm Compression Point (1dB)

s Programmable Performance

s Full Military Temperature Range (SL644A)

APPLICATIONS

s Mixers in Radio Transceivers

s Phase Comparators

s Modulators

ORDERING INFORMATION

SL6440 A DG

SL6440 C DP

Fig.1 Pin connections - top view

DG16

DP16

ABSOLUTE MAXIMUM RATINGS

Supply voltage and output pins

Maximum power dissipation

(Derate above 25°C: 8mW/°C)

Storage temperature range

Programming current into pin 11

15V

1200mW

-65°C to +150°C

50mA

THERMAL CHARACTERISTICS

Thermal resistance: 0JA

0JC

Time constant: Junction-Ambient

Maximum chip temperature

125°C/W

1.9 mins

150°C

ELECTRICAL CHARACTERISTICS

Test condltions (unless otherwise stated):

VCC1 = 12V; VCC2 = 10V; IP = 25mA; Tamb = -55°C to +125°C (SL64440A), -30°C to +85°C (SL6440C)

Local oscillator input level = 0dBm; Test circuit Fig.2.

Characteristic

Value

Min. Typ.

Max.

Units

Conditions

Signal frequency 3dB point

100 150

Oscillator frequency 3dB point

100 150

3rd order input intercept point

+30

Third order intermodulation distortion

-60

Second order intermodulation distortion

-75

1dB compression point

15

Noise figure

11

Conversion gain

-1

Carrier leak to signal input

-40

Level of carrier at IF output

-25

Supply current

7

Supply current (total from VCC1 & VCC2)

60

Local oscillator input

100 250 500

Local oscillator input impedance

1.5

Signal input impedance

500

1000

MHz

MHz

dBm

dB

dB

dBm

dB

dB

dB

dBm

mA

mA

mV rms

kΩ

Ω

Ω

Two 0dBm input

Signals

VCC1 = 15V VCC2 = 12V

VCC1 = 12V VCC2 = 10V

Fig.8 test circuit

50Ω load Fig.2

Test circuit Fig.8

See applications information

IP = 0

IP = 35mA

Single ended

Differential

NOTE Supply current in Pin 3 is equal to that in Pin 14 and is equal to IP See over. Vpin11 3Vbe 2.1V.

Share Link: