MAX2366 MAXIM [Maxim Integrated Products], MAX2366 Datasheet - Page 15

• Manufacturer Part Number: MAX2366
• Description: Complete Dual-Band Quadrature Transmitters
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 4. Configuration Register (CONFIG)
VCO_BYPASS
IF_PLL_SHDN
RF_TURBO_
RF_PD_POL
IF_TURBO_
RESERVED
IF_PD_POL
BIT NAME
LD_MODE
IQ_LEVEL
CHARGE
CHARGE
BUF_DIV
RF_PLL_
SHDN
RCP
ICP
POWER-UP
______________________________________________________________________________________
STATE
00
00
11
1
1
0
1
0
0
1
1
1
1
LOCATION
(0 = LSB)
9, 8
7, 6
1, 0
BIT
15
14
13
12
11
10
5
4
3
2
0 shuts down the IF PLL. This mode is used with an external IF VCO and IF PLL.
0 shuts down the RF PLL. This mode is used with an external RF PLL.
Must be set to 0 for normal operation.
1 selects 200mV
1 selects ÷2 on IFLO port; 0 bypasses the divider.
1 bypasses IF VCO and enables a buffered input for external VCO use.
A 2-bit register sets the IF charge-pump current as follows:
00 = 175µA
01 = 235µA
10 = 350µA
11 = 465µA
A 2-bit register sets the RF charge-pump current as follows:
00 = 165µA
01 = 230µA
10 = 340µA
11 = 450µA
IF phase-detector polarity; 1 selects positive polarity (increasing tuning voltage
on the VCO produces increasing frequency); 0 selects negative polarity
(increasing tuning voltage on the VCO produces decreasing frequency).
RF phase-detector polarity; 1 selects positive polarity (increasing tuning voltage
on the VCO produces increasing frequency); 0 selects negative polarity
(increasing voltage on the VCO produces decreasing frequency).
1 activates turbocharge feature, providing an additional 450µA of IF charge-
pump current during frequency acquisition.
1 activates turbocharge feature, providing an additional 435µA of RF charge-
pump current during frequency acquisition.
Determines output mode for LOCK detector pin as follows:
00 = test mode, LD_MODE cannot be 00 for normal operation
01 = IF PLL lock detector
10 = RF PLL lock detector
11 = logical AND of IF PLL and RF PLL lock detectors
Quadrature Transmitters
RMS
input mode; 0 selects 100mV
Complete Dual-Band
FUNCTION
RMS
input mode.
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