MAX2395ETI+ Maxim Integrated Products, MAX2395ETI+ Datasheet - Page 9

• Manufacturer Part Number: MAX2395ETI+
• Description: RF Wireless Misc IC MODULATOR W/ VGA AND PA DRIVER
• Manufacturer: Maxim Integrated Products

Specifications of MAX2395ETI+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 2. Register Power-Up Default States (f
Table 3. Operation Control Register (OPCTRL) Bit Assignments
RFM
RFR
OPCTRL
PA_RF_IF_EN
AML1, AML0
RCP1, RCP0
BIT NAME
IDLE_PRG
PRD_Bias
OUT_Bias
GmC_EN
VCO_EN
DC_TRM
PLL_EN
X2_EN
SHDN
MPL
—
REGISTER
POWER-UP STATE
_______________________________________________________________________________________
1 1
0 0
1
0
1
1
1
1
1
0
1
0
0
0
(80 dec for ÷R)
DEFAULT
9750 dec
197D hex
4050 hex
LOCATION
WCDMA Quasi-Direct Modulator
(0 = LSB)
12, 11
14, 13
BIT
10
15
0
1
2
3
4
5
6
7
8
9
Setting this bit to zero shuts down everything except the serial interface
and registers, which retain their values. It is overridden by a logic-low on
the SHDN pin.
If bit is set to 1, this leaves the GmC filters and the servo loop ON when
the IDLE pin goes LOW. If bit is set to zero, the GmC filters shut off when
the IDLE pin goes LOW.
Leave in power-up state.
Setting this bit to zero bypasses GmC filters.
Setting this bit to zero shuts off the RF PLL.
Setting this bit to zero shuts off the RF VCO.
Setting this bit to zero shuts off the PA driver, RF upconverter, and IF
modulator sections.
Setting this bit to 1 enables the X2 multiplier for use in the REF divider
section when TCXO frequency is 13MHz.
Maximum power level setting: 1 = +6dBm; 0 = +3dBm
Predriver bias: 0 = -25%; 1 = nominal
Output bias: 0 = nominal; 1 = +30%
A 2-bit word sets the RF charge-pump current as follows:
0 0 = 1000µA
0 1 = 1500µA
1 0 = 2000µA
1 1 = 2500µA
A 2-bit word sets the Ameliorator current as follows:
0 0 = Off
0 1 = Low (nominal)
1 0 = Mid
1 1 = High
These bits are used in DC offset trimming mode, where DC_TRM = 1.
Setting this bit to 1 enables the DC offset trimming mode.
REF
with VGA and PA Driver
= 19.2MHz, f
ADDRESS
0010
0000
0100
b
b
b
FUNCTION
RF
Main-divider ratio register
Reference-divider register
Operational control settings
= 1950MHz)
FUNCTION
9