CMX993 datasheet(21/26 Pages) CMLMICRO

21 / 26 page

Quadrature Modulator

CMX993/CMX993W

 2013 CML Microsystems Plc

D/993/10

8.1.3

Operating Characteristics

For the following conditions unless otherwise specified:

VDD = AVDD = DVDD = 3.3V; VDDIO = 1.6V to VDD; VSS = AVSS = DVSS. LO Level = -15dBm and

TAMB = -40ºC to +85ºC.

DC Parameters

Notes

Min.

Typ.

Max.

Units

Total Current Consumption

Powersave mode

µA

Band gap VREF only

µA

Operating

Current from VDDIO

600

µA

Logic '1' Input Level

70%

VDDIO

Logic '0' Input Level

30%

VDDIO

Logic Input Leakage Current (Vin = 0 to DVDD)

-1.0

+1.0

µA

Output Logic ‘1’ Level (lOH = 0.6 mA)

80%

VDDIO

Output Logic ‘0’ Level (lOL = -1.0 mA)

+0.4

Power up time

Voltage Reference

All blocks except Voltage Reference

0.5

µs

Reference Voltage (VREF, BVREF)

1.45

1.6

1.75

Notes:

Powersave mode includes the case after general reset with all analogue and digital supplies

applied and also the case with VDD applied but with all analogue supplies disconnected (i.e. in

this latter scenario power from VDD will not exceed the specified value, whatever the state of the

registers). At TAMB = 25ºC, not including any current drawn from device pins by external

circuitry.

For CMX993 only. Add 1mA for CMX993W device. TAMB = 25ºC only.

Assumes 30pF on each C-BUS interface line and an operating serial clock frequency of 5MHz.

Time from the rising edge of the last serial clock input following CSN being asserted for a write

to the appropriate control register.

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