STLC5048TR STMicroelectronics, STLC5048TR Datasheet - Page 58

• Manufacturer Part Number: STLC5048TR
• Description: IC CODEC/FILTER PROGR 4CH 64TQFP
• Manufacturer: STMicroelectronics
• Type: PCM Codec/Filterr

Specifications of STLC5048TR

• Data Interface: PCM Audio Interface
• Resolution (bits): 16 b
• Number Of Adcs / Dacs: 4 / 4
• Sigma Delta: Yes
• Voltage - Supply, Analog: 3.3 V ~ 5 V
• Voltage - Supply, Digital: 3.3 V ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Absolute gains in kit with L3235N/STLC3080
Appendix A
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Figure 11. STLC5048 in kit with STLC3080 AC application diagram
Figure 12. STLC5048 in kit with L3235N AC application diagram
In
SLIC. The figure is related to the AC path as the STLC5048 doesn't perform any DC
processing.
The only DC feature performed by STLC5048 is the off-hook and limitation threshold
programmability.
The same application diagram for the AC processing can be applied to the kit with the
L3235N (as shown in
●
●
●
As shown in
resistor Rs = 4100 ohm (8200 ohm for the STLC3080): this value is fixed (i.e. independent
of the administration): the attenuation between VLINE and VFXI is dependent on the
administration.
Figure 11
DR
DX
DR
DX
The scaling factor of the Iline is 50.
Rs value is 4.1 Kohm.
The impedance synthesis is fully performed by STLC5048; the L3235N SLIC (or the
STLC3080) used in kit with the STLC5048 just splits the AC/DC component of Iline,
scales it and traduces it into a voltage via RS.
GRX
GTX
GRX
GTX
is shown the application diagram of the STLC5048 in kit with the STLC3080
Figure 12
Absolute gains in kit with L3235N/STLC3080
STLC5048
CANCELING
STLC5048
CANCELING
ECO
ECO
+
+
Figure 12
, the scaled current is converted into a voltage through the external
CHANNEL
CHANNEL
CHANNEL
CHANNEL
FILTER
FILTER
FILTER
FILTER
): the only differences are the following:
SYNTHESIS
SYNTHESIS
+
Z
+
Z
VFRO
VFXI
VFRO
VFXI
RX
TX
RX
TX
D00TL472
D00TL473
2
2
1
1
RS
RPC
8200Ω
R
4100Ω
R
S
S
1
-1
1
-1
CAC
RING
TIP
RING
CAC
TIP
R
R
ILTF
P
P
R
R
Zadm
P
P
Zadm
STLC5048
RDC
IL
Iline
Iline