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Pin.No.
Terminal Name
I/O Setting
Contents of Control
Remark
36
GND
-
Ground
37
REXT
I
External resistor
38
VDDRCV
-
Analog 2.5V power supply
39
GND
-
Ground
40
TX-
O
Transmit Outputs
41
TX+
O
Transmit Outputs
42
VDDTX
-
Transmitter 2.5V power supply
43
GND
-
Ground
44
GND
-
Ground
45
XO
O
XTAL feedback
46
XI
I
Crystal Oscillator Input
47
VDDPLL
-
Analog PLL 2.5V power supply
48
RST#
I
Chip Reset
10.3. IC5 (DC-DC Convertor)
Pin.No.
Terminal Name
I/O Setting
Contents of Control
Remark
1
NC
-
No internal connection
2
SW
O
Switching Node
3
BST
I
Boost pin for bootstrap capacitor
4
ISEN
I
Current sense
5
SGND
-
Sense Ground
6
RTN
I
Circuit Ground
7
NC
-
No internal connection
8
NC
-
No internal connection
9
FB
I
Feedback input from the regulated output
10
SS
I
Soft start
11
RON/SD
I
On-time control and shutdown
12
VCC
-
Output from the startup regulator
13
VIN
-
Input supply voltage
14
NC
-
No internal connection
33
KX-NT265X / KX-NT265X-B
Summary of Contents for KX-NT265X
Page 14: ...KX NT265X KX NT265X B 14 ...
Page 17: ...17 KX NT265X KX NT265X B ...
Page 18: ...9 TROUBLESHOOTING GUIDE 9 1 NO OPERATION 18 KX NT265X KX NT265X B ...
Page 19: ... Note Refer to waveform 1 3 and 6 in 17 4 WAVEFORM P 48 19 KX NT265X KX NT265X B ...
Page 20: ...20 KX NT265X KX NT265X B ...
Page 22: ...9 3 HANDSET DOES NOT WORK Receive Send 22 KX NT265X KX NT265X B ...
Page 23: ...9 4 HEADSET DOES NOT WORK Receive Send 23 KX NT265X KX NT265X B ...
Page 24: ...9 5 SPEAKER PHONE DOES NOT WORK Receive Send 24 KX NT265X KX NT265X B ...
Page 35: ...11 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 35 KX NT265X KX NT265X B ...
Page 37: ...13 CABINET AND ELECTRICAL PARTS LOCATION 37 KX NT265X KX NT265X B ...
Page 38: ...14 ACCESSORIES AND PACKING MATERIALS 38 KX NT265X KX NT265X B ...
Page 50: ...IC13 pin2 DATA IC13 pin3 CLK IC13 pin4 LCK 13 LED CIRCUIT 50 KX NT265X KX NT265X B ...