TS3004
BLOCK DIAGRAM
FDIV
tFOUT(s)
FOUT (Hz)
ICPWM (A)
2:0
000
001
010
011
100
101
110
111
3.3µ-111.1µs
26.4µ-888.88µs
211.2µ-7.11ms
1.7ms-56.88ms
13.6ms-455.16ms
108.8ms-3.64
870.4ms-29.15
6.99-233
300k-9k
1µ
1µ
37.5k-1.125k
4.69k-140.62
586-17.578
73.25-2.197
9.16-0.2746
1.14-0.0343
0.143-0.00429
100n
100n
100n
100n
100n
100n
Table 1: FOUT and PWMOUT Frequency Range per FDIV2:0 Combination
THEORY OF OPERATION
RSET (MΩ)
tFOUT(s)
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:
0.360
1
6.99
19.42
48.35
83.89
132.27
189.39
233
2.49
4.32
6.81
9.76
12
ꢀ8ꢀꢄꢅV2ꢆ0 x RSꢇT
tꢀOꢁT ꢂsꢃ =
ꢀ
1.08ꢇ11
Equation 1. FOUT Frequency Calculation where
FDIV2:0 = 0 to 7
Table 2: tFOUT vs RSET for FDIV2:0 = 111(7)
TS3004DS r1p0
Page 7
RTFDS