LMX3161VBH datasheet(6/14 Pages) NSC

6 / 14 page

Electrical Characteristics (Continued)

The following specifications are guaranteed for V

CC = 3.6V and TA = 25˚C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

RSSI (Note 11)

IN = 110 MHz

RSSI

out

Output Voltage

IN=−80 dBm@IFIN input pin

0.12

0.2

0.6

IN=−20 dBm@IFIN input pin

0.9

1.2

—

Slope

IN= −90 to −30 dBm@LIMIN input pin

mV/d

RSSI

Dynamic Range

IN min= −90 dBm@LIMIN input pin

—

DC COMPENSATION CIRCUIT

Input Offset Voltage

−5

—

I/O

Input/Output Voltage Swing

Centered at 1.5V

—

1.0

—

Sample and Hold Resistor

2000

3000

3600

Ω

FREQUENCY SYNTHESIZER

IN = −14 to −9 dBm

Input Frequency Range

(Note 9)

500

—

1200

MHz

Input Signal Level

IN=200Ω (Note 15)

—

−11.5

—

dBm

OSC

Oscillator Frequency Range

(Note 12)

—

MHz

OSC

Oscillator Sensitivity

(Note 12)

0.5

1.0

—

Do-source

Charge Pump Output Current

do = V P/2, Icpo = LOW

(Note 14)

—

−1.5

—

Do-sink

do = V P/2, Icpo = LOW

(Note 14)

—

1.5

—

Do-source

do = V P/2, Icpo = HIGH

(Note 14)

—

−6.0

—

Do-sink

do = V P/2, ICPO = HIGH

(Note 14)

—

6.0

—

Do-Tri

0.5

≤ V

do ≤ Vp − 0.5

A = 25˚C

−1.0

—

1.0

FREQUENCY DOUBLER

IN = 945 MHz, fOUT = 1.89 GHz

OUT

Output Frequency Range

(Note 13)

1770

—

1900

MHz

OUT

Output Signal Level

IN = −11.5 dBm, fOUT = 1.89 GHz

−10

−3

—

dBm

Fundamental Output Power

IN = −11.5 dBm, fOUT = 945 MHz

—

−22

−13.5

dBm

Harmonic Output Power

IN = −11.5 dBm, fOUT = 2.835 GHz

—

−24

−15

dBm

OUT

Output Impedance

TX chain powered up

—

25+j60

—

Ω

TX chain powered down

—

15-j30

—

Ω

VOLTAGE REGULATOR

Output Voltage

LOAD = 5 mA

2.55

2.75

2.90

DIGITAL INPUT/OUTPUT PINS

High Level Input Voltage

2.4

—

Low Level Input Voltage

0.0

—

0.8

Input Current

GND < V

IN < VCC

−10

—

µA

High Level Output Voltage

OH=−0.5 mA

2.4

—

Low Level Output Voltage

OL=0.5 mA

—

0.4

Note 3: The mixer section is tested at 1.89 GHz, and it is guaranteed by design to operate within 1.7 — 2.0 GHz range.

Note 4: The IF section of this device is designed for optimum operating performance at 110 MHz to meet the DECT specifications.

Note 5: The matching network used on RFIN consists of a series 3.3 pF capacitance into the pin. The matching circuit used on MIXEROUT consists of a series 100

nH inductance and a shunt 12 pF capacitance into the pin.

Note 6: Noise Figure measurements are made with 890 MHz BPF on the FIN input and matching networks on RFIN and MIXEROUT.

Note 7: The matching network used on IFIN consists of a series 33 nH inductance and a shunt 1.8 pF capacitance into the pin.

Note 8: The discriminator is with the DC level centered at 1.5V. The unloaded Q of the tank is 40.

Note 9: The frequency synthesizer section is guaranteed by design to operate within 500 - - 1200 MHz range.

Note 10: Nominal refers to zero DC offsets programmed for the discriminator.

Note 11: It depends on loss of inter-stage filter. These specifications are for an inter-stage filter with a loss of 8 dB.

Note 12: The frequency synthesizer section is guaranteed by design to operate for OSCIN input frequency within 5 — 20 MHz range and minimun amplitude of 0.5

Vpp.

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