ST75951 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST75951' PDF : 21 Pages View PDF
ST75951
FUNCTIONAL DESCRIPTION (continued)
Figure 18
D5
D6
D3
D4
RING
RING
Figure 19
D5
Xms *
Line Free
Line in use, Ring = '1'
D6
D3
D4
F0
VCM
VCM
*Xms value is fixed
by ST75952 application
F0
F0
F0
RING
Overcurrent
9 - Analog / Digital Loop Back Test
By programming bit 9,8 = ’ 01’ of control register 3,
we can set ST75951 in ’local analog loop back’ (see
Figure 20).
By programming bit 9, 8 =’ 10’ of control register 3,
we can set ST75951 in ’local digital loop back’ (see
Figure 21).
Figure 20
2nd ORDER
MODULATOR
LOW-PASS
(0.425 x Sampling
Frequency)
LOW-PASS
(0.425 x Sampling
Frequency)
DOUT
DIN
12/21
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