TS3004
BLOCK DIAGRAM
FDIV
t
FOUT
(s)
FOUT (Hz)
I
CPWM
(A)
2:0
000
3.3µ-111.1µs
300k-9k
1µ
001
26.4µ-888.88µs
37.5k-1.125k
1µ
010
211.2µ-7.11ms
4.69k-140.62
100n
011
1.7ms-56.88ms
586-17.578
100n
100
13.6ms-455.16ms
73.25-2.197
100n
101
108.8ms-3.64
9.16-0.2746
100n
110
870.4ms-29.15
1.14-0.0343
100n
111
6.99-233
0.143-0.00429
100n
Table 1:
FOUT and PWMOUT Frequency Range per FDIV2:0 Combination
THEORY OF OPERATION
The TS3004 is a user-programmable oscillator where
the period of the square wave at its FOUT terminal is
generated by an external resistor connected to the
RSET pin. The output period is given by:
t
O T
R
SET
(MΩ)
t
FOUT
(s)
s =
8
x RS T
1.08 11
V2 0
Equation 1.
FOUT Frequency Calculation where
FDIV2:0 = 0 to 7
TS3004DS r1p0
0.360
6.99
1
19.42
2.49
48.35
4.32
83.89
6.81
132.27
9.76
189.39
12
233
Table 2:
t
FOUT
vs R
SET
for FDIV2:0 = 111(7)
Page 7
RTFDS
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