LTC6401-20 Datasheet, PDF (14/16 Pages) Linear Technology – 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF

LTC6401-20
TYPICAL APPLICATION
Demo Circuit 987B Schematic (Test Circuit A)
ENABLE 1
3 DIS
2 _JP1
R16
0Ω
V_CC
V_CC
C17
1000pF
C18
0.1μF
R2
(1)
R6
J1
0Ω
5 T1
+IN
(2)
R5
J2 ^{0dB (1)}
4
–IN
R1
0Ω
12 11
V– ENABLE
13
+IN
10 9
V⁺
V–
8
+OUT
R10
86.6Ω
1
R4
C2
(2) _C21 ^0.1μF
14
+IN
R8
7 ⁽¹⁾
+OUTF
2
3
0.1μF _R24
(1)
R3
C1
SL1
(2)
15
–IN
LTC6401-20
R7
6 ⁽¹⁾
–OUTF
(2)
0.1μF
R9
16
5 ^86.6Ω
–IN
–OUT
V⁺ V_OCM V⁺
V–
1
2
3
4
V_CC
V_CC
C4
0.1μF
SL2
(2)
C3
0.1μF
R14
(1)
T2
3 ^{TCM 4-19}
1:4
2
1
R12
4 ^0Ω
R11
5 ⁽¹⁾
C22
R13
0.1μF
0Ω
J4
+OUT
SL3
(2)
J5
–OUT
TP5
V_OCM
J6
TEST IN
TP2
V_CC
2.85V TO 3.5V
TP3
GND
V_CC
R19
1.5k
R20
1k
R17
T3
0Ω
5
TCM 4-19
1:4
1
C19
2 ^0.1μF
R25
0Ω
4
3
V_CC
C10
0.1μF
C23
0.1μF
C24
0.1μF
C9
1000pF
C12
1000pF
C13
0.1μF
C7
0.1μF
C5
0.1μF
R21
R22
(1)
C6
(1)
0.1μF
C20
0.1μF
C14
C15
4.7μF
1μF
(2) VERSION
IC
R3 R4
T1
SL1 SL2 SL3
-G LTC6401CUD-20 OPEN OPEN MINI-CIRCUITS TCM4-19 (1:4) 6dB 20dB 14dB
SL = SIGNAL LEVEL
T4
3
TCM 4-19
1:4
2
1
R18
4 ^0Ω
R26
5 ^0Ω
J7
TEST OUT
NOTE: UNLESS OTHERWISE SPECIFIED.
(1) DO NOT STUFF.
640120 TA03
640120f
14