STLC3055N STMicroelectronics, STLC3055N Datasheet - Page 31

• Manufacturer Part Number: STLC3055N
• Manufacturer: STMicroelectronics

Specifications of STLC3055N

• Number Of Channels: 1
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: No
• Longitudinal Balanced: 58
• Operating Supply Voltage (typ): 9V
• Operating Temp Range: -40C to 85C
• Package Type: TQFP
• Loop Current Limit: 40mA
• Operating Temperature Classification: Industrial
• Pin Count: 44
• Mounting: Surface Mount
• Operating Current: 55mA
• Operating Supply Voltage (max): 12V
• Operating Supply Voltage (min): 5.5V
• Lead Free Status / RoHS Status: Not Compliant

STLC3055N
9
9.1
9.2
9.3
STLC3055Q vs STLC3055N compatibility.
STLC3055N is pin to pin compatible with the old STLC3055Q but offer a better performance
in term of power consumption and can be set in a new gain configuration in order to be
compatible with the 3.3 V codec.
Typical power consumption comparison
Table 14.
To meet this result some differences, with a minimum impact on the application, has been
introduced in STLC3055N.
Hardware differences
●
●
●
Table 15.
Parameter differences
Table 16.
HI-Z
Active on hook
Ring (no REN)
RRX
Rp
RLV
CFL
Absolute max. rating
Operating range
Typ. metering pulse level (Gs 1)
Typ. metering pulse level (Gs 0)
RX input. In STLC3055N it is necessary a 100 kΩ external resistor between RX input
and AGND to bias the input stage.
Rp. The STLC3055N required a Rp value of 50 Ω instead of 41 Ω.
TTX filter. To optimize the ttx signal dynamic, the values of RLV and CFL have been
changed;
Operative mode
Component
Parameter
Power consumption differences
Hardware differences
Parameter differences
120 - 140 mA
STLC3055Q
STLC3055Q
STLC3055Q
93 - 115 mA
52 - 60 mA
200 mV
15.8 V
27 kΩ
41 Ω
17 V
1 nF
STLC3055Q vs STLC3055N compatibility.
rms
STLC3055N
STLC3055N
STLC3055N
340 mVrms
13 - 25 mA
50 - 80 mA
55 - 90 mA
170 mV
16.2 kΩ
100 kΩ
1.5 nF
50 Ω
13 V
12 V
rms
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