ADF4113HV
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R
V
SET
P
DV
CP
DD
CPGND
AGND
MUXOUT
LE
PIN 1
ADF4113HV
INDICATOR
TOP VIEW
CPGND
AGND
AGND
1
2
3
4
5
15 MUXOUT
14 LE
13 DATA
12 CLK
11 CE
(Not to Scale)
ADF4113HV
R
R
B
DATA
CLK
FIN
FIN
TOP VIEW
RF
RF
B
A
IN
IN
(Not to Scale)
A
AV
CE
DD
REF
DGND
IN
Figure 3. TSSOP Pin Configuration
Figure 4. LFCSP Pin Configuration
Table 5. Pin Function Descriptions
TSSOP
Pin No.
LFCSP
Pin No.
Mnemonic Description
1
19
RSET
Connecting a resistor between this pin and CPGND sets the maximum charge pump output current.
The nominal voltage potential at the RSET pin is 0.56 V for the ADF4113HV. The relationship between
ICP and RSET is ICPmax = 3/RSET. Therefore, with RSET = 4.7 kΩ, ICPmax = 640 μA.
2
20
CP
Charge Pump Output. When enabled, this pin provides ICP to the external loop filter; in turn, this
drives the external VCO.
3
4
5
1
2, 3
4
CPGND
AGND
RFINB
Charge Pump Ground. CPGND is the ground return path for the charge pump.
Analog Ground. This is the ground return path of the prescaler.
Complementary Input to the RF Prescaler. This point should be decoupled to the ground plane with
a small bypass capacitor, typically 100 pF.
6
7
5
6, 7
RFINA
AVDD
Input to the RF Prescaler. This small-signal input is ac-coupled from the VCO.
Analog Power Supply. The power supply can range from 2.7 V to 5.5 V. Decoupling capacitors to the
analog ground plane should be placed as close as possible to this pin. AVDD must be the same value
as DVDD.
8
8
REFIN
Reference Input. This pin is a CMOS input with a nominal threshold of VDD/2, and an equivalent
input resistance of 100 kΩ. This input can be driven from a TTL or CMOS crystal oscillator, or can be
ac-coupled.
9
10
9, 10
11
DGND
CE
Digital Ground.
Chip Enable. A Logic low on this pin powers down the device and puts the charge pump output
into three-state mode. Taking the pin high powers up the device depending on the status of the
Power-Down Bit PD1.
11
12
CLK
Serial Clock Input. This serial clock is used to clock in the serial data to the registers. The data is
latched into the 24-bit shift register on the CLK rising edge. This input is a high impedance CMOS
input.
12
13
14
15
13
DATA
LE
Serial Data Input. The serial data is loaded MSB first with the two LSBs being the control bits. This
input is a high impedance CMOS input.
Load Enable, CMOS Input. When LE goes high, the data stored in the shift registers is loaded into
one of the four latches; the latch is selected using the control bits.
Multiplexer Output. This multiplexer output allows either the lock detect, the scaled RF, or the
scaled reference frequency to be externally accessed.
Digital Power Supply. This can range from 2.7 V to 5.5 V. Decoupling capacitors to the digital ground
plane (1ꢀF, 1nF) should be placed as close as possible to this pin. For best performance, the 1 ꢀF
capacitor should be placed within 2 mm of the pin. The placing of the 1nF capacitor is less critical
but should still be within 5 mm of the pin. DVDD must have the same value as AVDD.
14
15
MUXOUT
DVDD
16, 17
16
18
VP
Charge Pump Power Supply. VP can range from 13.5 V to 16.5 V and should be decoupled
appropriately.
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