DEMOTS4956J STMicroelectronics, DEMOTS4956J Datasheet - Page 9

• Manufacturer Part Number: DEMOTS4956J
• Description: BOARD DEMO TS4956EIJT/EIKJT
• Manufacturer: STMicroelectronics

Specifications of DEMOTS4956J

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono) with Mono and Stereo Headphones
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm; 43mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: TS4956
• Description/function: Audio Amplifiers
• Operating Supply Voltage: 2.7 V to 5.5 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TS4956
• Other names: 497-6381; DEMOTS4956J

AN2465
3
Evaluation board connectors
Caution: When you apply the power supply through Cn1 and Cn4, DO NOT invert the
Connectors
Cn2, Cn3
Cn1
Cn4
JP1
JP2
JP3
JP4
JP5
JP6
J1
J2
polarity because it would destroy the amplifier at U1.
Power connector for analog part of V
When pins of Cn2 and Cn3 are shorted by jumpers, the TS4956 can be driven by on-
board I
TS4956 can be driven by an external I
connector must be supplied by V
Connector for V
Possible configuration settings:
–
–
After removing a jumper, the V
– Pin 2 of Cn4 is connected to an external V
– And pin 3 of Cn4 is connected to the ground pin (negative node) of the V
In this case, ensure the condition 2.7 V
operation.
RS232 connector (DSR, TRS, TXD, DTR, GND2).
Stereo jack for connecting stereo headphones 16/32 Ω (LHP, RHP, PHG)
Input signal connector (MIP, MIN, GND).
Input signal connector (LIN, GND).
Input signal connector (RIN, GND).
Output signal connector (SRP, SRN).
Output signal connector (MLO, GND).
Output signal connector (LHP, RHP, PHG).
shutdown with ultra low current consumption.
supply.
1
1
2
2
`
`
2
C circuits or from a PC. When pins of Cn2 and Cn3 are disconnected, the
3
3
pins 2 and 3 are shorted, V
pins 1 and 2 are shorted, V
CC
-I
2
C power supply.
CC
CC
-I
2
-I
C can be supplied by an external voltage:
Description
CC
2
C voltage in both cases.
2
CC
C interface over Cn2 and Cn3 pins. The Cn4
. Power supply voltage from 2.7 V to 5.5 V.
CC
≤
V
-I
-I
2
CC
2
C is grounded and the TS4956 is in total
C is supplied by V
CC
-I
2
-I
C
2
C supply (positive node)
≤
Evaluation board connectors
V
CC
is respected for proper
CC
of the TS4956.
CC
-I
2
C
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