Datasheet

Application Level Circuit Diagram
5-4
5.1.3 Active Loop Filter—External Operational Amplifier
Figure 5−3. CDC7005 With an Active Loop Filter Using OPA341
SPI
PECL_OUT_B
PECL_OUT
V_CTRL
VCXO
CP_OUT
OPA_IP
OPA_IN
OPA_OUT
VCXO_IN
VCXO_IN_B
CTRL_LE
CTRL_DATA
CTRL_CLK
REF_IN
YnB
Yn
CDC7005
STATUS_LOCK
STATUS_VCXO
STATUS_REF
Vcc
245.76 MHz; Gain = 26.5kHz/V
Low-Pass Filter
Vcc
InP
InN
Out
OPA341
R
82 Ω
R
82 Ω
R
150 Ω
R
150 Ω
10 nF
10 nF
C1
100 nF
R1
180 Ω
C1
100 nF
R6
10 KΩ
R5
10 KΩ
C2
10 µF
R3
10 KΩ
C3
100 nF
130 Ω
V
CC
130 Ω
V
CC