CMX971 Datasheet, PDF (22/25 Pages) CML Microcircuits – Small 16-lead VQFN Package

Quadrature Modulator
9.1.3 Operating Characteristics
9.1.3.1 DC Parameters
For the following conditions unless otherwise specified:
V_DD = V_CC = 3.3V; V_SS = V_RFGND = V_LOGND = 0V. LO Level = -10dBm and T_AMB = +25ºC.
DC Parameters
Total Current Consumption
Powersave mode
Bias only
Operating
Logic '1' Input Level
Logic '0' Input Level
Logic Input Leakage Current (Vin = 0 to V_DD)
Output Logic ‘1’ Level (l_OH = 0.6 mA)
Output Logic ‘0’ Level (l_OL = -1.0 mA)
Power-up Time
Voltage Reference
All blocks except Voltage Reference
Notes
1
2
3
5
4
4
Min.
–
–
–
70%
–
-1.0
80%
–
–
–
Typ.
7
1.7
63
–
–
–
–
–
–
–
Max.
70
2.0
75
–
30%
+1.0
–
+0.4
0.5
10
CMX971
Units
µA
mA
mA
V_DD
V_DD
µA
V_DD
V
ms
µs
Notes:
1.
2.
3.
4.
5.
Total current, V_DD and V_CC.
Powersave mode includes the case after general reset with all analogue and digital supplies
applied and also the case with V_DD applied but with all analogue supplies disconnected (i.e. in
this latter scenario power from V_DD will not exceed the specified value, whatever the state of the
registers). At T_AMB = 25ºC, not including any current drawn from device pins by external
circuitry.
Only BIAS section active.
Time from the rising edge of the last serial clock input following CSN being asserted for a write
to the appropriate control register.
Tx and Bias sections active, TXDIV = 0, F3-F0 = 0000.
9.1.3.2 AC Parameters
For the following conditions unless otherwise specified:
V_DD = V_CC = 3.3V; V_SS = V_RFGND = V_LOGND = 0V. LO Level = -10dBm and T_AMB = +25ºC.
AC Parameters
Notes Min.
Typ.
Max.
Local Oscillator Input
Frequency Range
LO Input Impedance
LO Input Level
6
40
–
2000
7
–
–
–
–
-10
–
Units
MHz

dBm
Notes:
6.
7.
Local oscillator input frequency twice or four times the required operating frequency.
See section 8.1.1
 2015 CML Microsystems Plc
22
D/971/4