LTC6903 Linear Technology, LTC6903 Datasheet - Page 12

• Manufacturer Part Number: LTC6903
• Description: (LTC6903 / LTC6904) 1kHz - 68MHz Serial Port Programmable Oscillator
• Manufacturer: Linear Technology

RELATED PARTS
LTC6903/LTC6904
TYPICAL APPLICATIO
PART NUMBER
LTC1799
LTC6900
LTC6902
ThinSOT is a trademark of Linear Technology Corporation
12
TRIG
SCK
SEN
SDI
S0
S1
S2
MUX SELECT ADDRESS LINES
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
1
2
3
4
f
CLK
1
GND
SDI
SCK
SEN
< TRIGGER PULSE WIDTH < OUTPUT PULSE WIDTH
LTC6903
DESCRIPTION
1kHz to 30MHz ThinSOT™ Oscillator
1kHz to 20MHz ThinSOT Oscillator
Multiphase Oscillator with Spread Spectrum Modulation
U6
FAX: [phone] www.linear.com
CLK
CLK
OE
V
+
Wide Range Time Interval Generator (1.97 Seconds to 4 Microseconds)
8
7
6
5
V
+
0.1 F
f
CLK
U
C2
S2
0
1
0
1
0
1
0
1
10
11
MUX Inputs
2
3
V
D
CLK
CLK
MR
+
S1
16
0
0
1
1
0
0
1
1
4
1
8
+
V
PS
U4
R
0.1 F
Q10
Q11
Q12
74HC74-A
PHILIPS SEMICONDUCTOR
74HC4040
PHILIPS
SEMICONDUCTOR
C1
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q
Q
5
6
9
7
6
5
3
2
4
13
12
14
15
1
S0
0
0
0
0
1
1
1
1
COMMENTS
Single Output, Higher Frequency Operation
Single Output, Lower Power
2, 3 or 4-Phase Outputs
10
11
n
4
5
6
7
8
9
15
14
13
12
11
10
4
3
2
1
9
7
0.1 F
D0
D1
D2
D3
D4
D5
D6
D7
S0
S1
S2
OE
C3
16
8
V
U1
+
Pulsewidth
1024/f
2048/f
128/f
256/f
512/f
16/f
32/f
64/f
74HC251
PHILIPS
SEMICONDUCTOR
Output
Y
Y
6
5
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
Q
OUT
12
11
LINEAR TECHNOLOGY CORPORATION 2003
74HC74-B
PHILIPS
SEMICONDUCTOR
D
CLK
LT/TP 0404 1K REV A • PRINTED IN USA
10
13
PS
U5
V
R
+
Q
Q
6903 TA02
9
8
OUTPUT
WIDTH
PULSE
=
f
CLK
2
n
V
V
69034fa
OUT
OUT