PSB2115FV1.2D Lantiq, PSB2115FV1.2D Datasheet - Page 82
PSB2115FV1.2D
Manufacturer Part Number
PSB2115FV1.2D
Description
Manufacturer
Lantiq
Datasheet
1.PSB2115FV1.2D.pdf
(317 pages)
Specifications of PSB2115FV1.2D
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PSB 2115
PSF 2115
Functional Description
2.5.1
Analog Functions
For both receive and transmit direction, a 2:1 transformer is used to connect the ISAC-
S transceiver to the 4 wire S/T interface (CONF:AMP=0). As an option, the receiver can
also be operated with a 1:1 transformer (CONF:AMP=1). The connections are shown in
figure 25.
Figure 25
Connection of the Line Transformers and Power Supply to the IPAC
The external transformers are needed in both receive and transmit direction to provide
for isolation and transform voltage levels according to CCITT recommendations.
The equivalent circuits of the integrated receiver and transmitter are shown in figure 26.
The full-bauded pseudo-ternary pulse shaping is achieved with the integrated transmitter
which is realized as a current limited voltage source.
Semiconductor Group
82
11.97
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