CHP2299 Datasheet, PDF (5/20 Pages) ANADIGICS, Inc – WCDMA InGaP HBT Amplifier Module

Table 5: Power Mode Truth Table (with NO AGC)
POWER MODE
VCC
VREF
VMODE TYPICAL GAIN
Shut Down
3.4
0 V⁽¹⁾
0V
<-40 dB
PA ON
3.4
2.85 V >2.1 V
27 dB
PA ON
1.8
2.85 V >2.1 V
24 dB
Notes:
1. VREF = 0V forces all currents to zero excluding the current of
VMODE pin. To shut down the VMODE current VMODE should be zero as well.
CHP2299
Using the AGC Option
If the analog gain control (AGC) option is needed,
then for a typical operation, Vmode can be defined
as a linear function of output power:
VMODE = 1.5 V + 0.025* POUT(dBm)
The following tables list the electrical performance,
of CHP2299 with AGC option as well as the power
mode truth table.
PARAMETER
Table 6: Operating Ranges (with AGC)
MIN TYP MAX UNIT
COMMENTS
Operating Frequency (f)
1920
-
1980 MHz
Supply Voltage (VCC)
+3.2 +3.4 +4.2
V
Reference Voltage (VREF)
+2.8 +2.85 +2.9
V
Mode Control Voltage (VMODE)
+1.1
-
+2.1
V
effective range with AGC⁽¹⁾
Operating Temperature (TC)
-25 +25 +85
°C
The device may be operated safely over these conditions; however, parametric performance is guaranteed
only over the conditions defined in the electrical specifications.
Notes:
(1) Gain and idle current for VMODE less than VMODE_Min are the same as that of VMODE = VMODE_Min. Also the Gain and idle
current for VMODE higher than VMODE_Max are the same as that of VMODE = VMODE_Max.
Figure 2: Idle Current vs. VMODE
Iq
Min
Max
VMODE
PRELIMINARY DATA SHEET - Rev 1.2
5
02/2004