TS3005
BLOCK DIAGRAM
FDIV
2:0
ICPWM
(A)
tFOUT(s)
FOUT (Hz)
000
001
010
011
100
101
110
111
1.7ms-56.88ms
13.65ms-455.16ms
109.17ms-3.64
877.19ms-29.15
7.01-233.1
55.94-31.09min
7.49min-4.146hrs
59.67min-33.1hrs
586-17.578
73.25-2.197
9.16-0.2746
1µ
1µ
100n
100n
100n
100n
100n
100n
1.14-0.0343
0.143-0.00429
0.0178-0.536mHz
0.0022-0.0670mHz
0.279mHz-8.381µHz
Table 1: FOUT and PWMOUT Frequency Range per FDIV2:0 Combination
THEORY OF OPERATION
RSET (MΩ)
tFOUT
The TS3005 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
59.67min
1.09hrs
6.87hrs
11.93hrs
18.81hrs
26.93hrs
33.1hrs
2.49
4.32
6.81
9.76
12
8ꢀꢃꢄV2ꢅ0 x RSꢆT x 512
tꢀOꢁT (sꢂ =
ꢀ
1.08ꢆ11
Equation 1. FOUT Frequency Calculation where
Table 2: tFOUT vs RSET for FDIV2:0 = 111(7)
FDIV2:0 = 0 to 7
TS3005DS r1p0
Page 7
RTFDS
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