HOLTEK HT95168

HT95168
HT95168 Caller ID Telephone IC
Introduction
The HT95168 is a high performance and low cost IC specifically designed for Caller ID telephone
applications. The device contains FSK/DTMF receiver, tone/pulse dialer, LCD driver, ringer, real
time clock and many more essential features. Besides, it has simple and cost-effective external
components which are suitable for high volume production.
Features
·
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Rev. 1.10
Operating voltage: 2.4V~5.5V
DTMF/FSK dual Caller ID standard
Stores a maximum of 27 incoming calls (date, time, number)
Stores a maximum of 8 outgoing calls (dialing time, number)
RTC Indicator (month-day-hour-minute-second)
Tone/Pulse dialing
1~99 hours setting for mute function
8-digit area & long distance code screen setting
Unauthorized-dialing protection
Four-stage ring sound/speech volume adjustment
Four-stage LCD brightness adjustment
Fixed IP number dialing out (defined by hardware option)
Caller ID records, check/delete/call-back
Previous edit and immediately dial out
Hand-free/redial/pause/flash/Add ¢0¢ call back/R key functions
Provides chip and package forms
1
March 22, 2004
HT95168
Pin Assignment
C O L 3
1
5 6
C O L 4
C O L 2
2
5 5
C ID IN
C O L 1
3
5 4
H F C
C O L 0
4
5 3
P D E T E
R O W 3
5
5 2
O S C 1
R O W 2
6
5 1
O S C 2
G N D
7
5 0
X T
R O W 1
8
4 9
N C
R O W 0
9
4 8
V D D
R O U T P
1 0
4 7
R E S
R O U T N
1 1
4 6
D T M F
R D E T E
1 2
4 5
N C
C O M 0
1 3
4 4
N C
C O M 1
1 4
4 3
H F I
C O M 2
1 5
4 2
N C
C O M 3
1 6
4 1
M U T E
C O M 4
1 7
4 0
C ID E N
C O M 5
1 8
3 9
X D P
C O M 6
1 9
3 8
H K S
C O M 7
2 0
3 7
N C
S E G 0
2 1
3 6
S E G 1 5
S E G 1
2 2
3 5
S E G 1 4
S E G 2
2 3
3 4
S E G 1 3
S E G 3
2 4
3 3
S E G 1 2
S E G 4
2 5
3 2
S E G 1 1
S E G 5
2 6
3 1
S E G 1 0
S E G 6
2 7
3 0
S E G 9
S E G 7
2 8
2 9
S E G 8
H T 9 5 1 6 8
5 6 S S O P -A
Rev. 1.10
2
March 22, 2004
HT95168
Pad Assignment
P D E T E
H F C
4 4 4 3
4 2
4 1
X T
C ID IN
C O L 4
4 6 4 5
O S C 2
C O L 3
C O L 2
4 8 4 7
O S C 1
C O L 1
C O L 0
5 0 4 9
4 0
1
R O W 1
3 9
V D D
3 8
R E S
3 7
D T M F
3 6
3 5
H F I
N C
3 4
3 3
M U T E
C ID E N
3 2
X D P
3 1
H K S
2
R O W 0
R O U T P
R O W 3
R O W 2
G N D
5 2 5 1
3
4
R O U T N
5
R D E T E
(0 ,0 )
6
7
C O M 0
C O M 5
1 2
2 8
S E G 1 4
S E G 1 3
C O M 6
1 3
2 7
S E G 1 2
2 4 2 5 2 6
S E G 1 1
2 3
S E G 1 0
2 0 2 1 2 2
S E G 7
1 9
S E G 6
1 6 1 7 1 8
S E G 3
1 5
S E G 2
1 4
S E G 9
2 9
S E G 8
S E G 1 5
1 1
S E G 5
3 0
C O M 4
S E G 4
9
1 0
S E G 1
C O M 2
C O M 3
C O M 7
8
S E G 0
C O M 1
* The IC substrate should be connected to VSS in the PCB layout artwork.
Rev. 1.10
3
March 22, 2004
HT95168
Pad Description
Pad No.
Pad Name
I/O
Configuration
Option
¾
¾
I
Pull-high
Resistor Input
Description
1
GND
Power ground
2, 3
ROW1, ROW0
4
ROUTP
I/O
Positive
Ring sound output, volume control
5
ROUTN
I/O
Negative
Ring sound output, volume control
6
RDETE
I
¾
Key matrix row lines
On-hook ring detector, off-hook lock ¢0¢ detection
7~14
COM0~COM7
O
¾
LCD common pins
15~30
SEG0~SEG15
O
¾
LCD segment pins
31
HKS
I
Low Active
Hook detection
32
XDP
O
High Active
Off-hook control
33
CIDEN
O
¾
34
MUTE
O
Low Active
Mute function
35
NC
¾
¾
No connection
36
HFI
I
Initial state is low
Rising Edge Trigger Hand-free trigger input
37
DTMF
O
¾
38
RES
I
Low Active
39
VDD
¾
¾
DTMF generator output
Reset pin
Power VDD
40
XT
¾
¾
Loop filter pin
41
OSC2
O
¾
32768kHz crystal output
42
OSC1
I
¾
32768kHz crystal input
¾
Unauthorized-dialing detection
43
PDETE
I
44
HFC
O
Rising Edge Trigger Hand-free control pin
45
CIDIN
I
¾
Caller ID signal input
46~50
COL4~COL0
O
¾
Key matrix column lines
51, 52
ROW3, ROW2
I
Pull-high
Resistor Input
Key matrix row lines
Key Matrix Description
Rev. 1.10
COL4 (46)
COL3 (47)
COL2 (48)
COL1 (49)
COL0 (50)
ROW3 (51)
1
2
3
Up
Pause
ROW2 (52)
4
5
6
Down
Set
ROW1 (2)
7
8
9
Delete
R Key
ROW0 (3)
*
0
#
Check
Add ¢0¢ Call back
GND
Call back/Redial
Flash/ADJ
Volume
IP
Hand-free
4
March 22, 2004
HT95168
Functional Description
Ring Sound/Speech Volume Control
· At On-hook state, press the [Volume] key to adjust the ring sound and each key for changes in
the sound volume from loud, medium, low to soft.
· At Off-hook state, press the [Volume] key to adjust the speech volume and each key for changes
in the volume from loud, medium, low to soft.
Note
The initial setting for ring sound/speech volume is loud.
LCD Brightness Adjustment
At On-hook state, press the [Flash/ADJ] key to adjust the LCD brightness and each key for
changes in the state from dim, slightly bright, average to bright.
Note
The initial setting for LCD brightness is slightly bright.
Time Setting
· At On-hook state, press the [Set] key for 2 seconds, the LCD then shows the
[Month-Day-Hour-Min-Sec], first the (Month) remains in a flashing state and waiting for adjustments, then press the [Up] or [Down] key to increase or decrease the month from 1 to 12.
· Press the [Set] key again, the (Day) remains in a flashing state and waiting for adjustments, then
press the [Up] or [Down] key to increase or decrease the day from 1 to 31.
· Press the [Set] key again, the (Hour) remains in a flashing state and waiting for adjustments,
then press the [Up] or [Down] key to increase or decrease the hour from 0 to 23.
· Press the [Set] key again, the (Min) remains in a flashing state and waiting for adjustments, then
press the [Up] or [Down] key to increase or decrease the minute from 0 to 59 and the second will
be set to zero at the same time.
Note
Rev. 1.10
The initial time setting is [01-01 00-00-00].
5
March 22, 2004
HT95168
Tone/Pulse Mode Setting
The HT95168 provides two kinds of dialing modes, tone mode and pulse mode. At On-hook state,
press the [*] key for 2 seconds to select the dialing mode.
· Tone Mode
DTMF Output Frequency (Hz)
Key Name
%Error
Specified
Actual
ROW3
697
698.8
+0.2%
ROW2
770
766.4
-0.5%
ROW1
852
847
-0.5%
ROW0
941
947.8
+0.6%
COL4
1209
1214.4
+0.4%
COL3
1336
1331
-0.3%
COL2
1477
1470
-0.4%
· Pulse Mode: Pulse rate: 10pps, M/B ratio: 40:60, Pulse to Tone duration: 3.6 seconds
Note
The initial dialing mode setting is tone mode.
Previous Edit and Immediately Dial Out
The HT95168 provides previous edit for dialing convenience and the maximum edit length is
32-digit, once off-hook or hand-free the edited number will be dialed out immediately. Besides,
pressing the [Call back/Redial] key or the [Add ¢0¢ Call back] key can also be dialed out directly.
Unauthorized-dialing Protection Setting
The meaning of [Unauthorized-dialing] is that the telephone line was illegally shunted by another
phone and making the line dial out.
· When the protection function is enabled, the HT95168 generates an interference signal to protect the line from being illegally used.
· At On-hook state, press the [#] key for 2 seconds, then turn on the LCD [Protection] icon to enable the protection function.
· Pressing again the [#] key for 2 seconds, turn off the icon to disable the function.
Note
Rev. 1.10
The initial setting of this function is disabled.
To ensure that this function works normally for long distance conditions, fill-in or re-charge the battery.
6
March 22, 2004
HT95168
Mute Function
Sometimes we need quiet and don¢t want to hear the ring sound at some situations such as during
sleeping, meeting or resting.
· The HT95168 provides the [Mute] function to stop the ring sound at a certain desired period.
· At On-hook state, press the [*], [2], [*], [four-digit number], [#] to set the ring sound mute period.
· [Four-digit number] expresses 2-digit hour with 2-digit minute, the setting range is from 99 hours
with 99 minutes to 0 hour with 1 minute.
· After setting, if the timer counts down to zero, the ring sound function is enabled.
Note
It can receive Caller ID data normally during mute period. The initial setting of this function is disabled.
Area & Long Distance Code Screen Setting
At On hook state, press the [*], [3], [*], [1~8 digits number], [#] to set the local area code or long distance code to store the caller ID phone number.
· For example, when pressing the [*] [3] [*] [0755] [#], if there¢s an incoming call with a number
075527089253, then it will automatically screen the 0755 phone number prefix and it only stores
the 27089253.
· Press the [*], [3], [*], [#] to disable the screen function and the LCD shows [Loc off].
Dual System Caller ID Setting
· When you plug the phone line into RJ11 jack to power-on reset the telephone, once a first caller
ID incoming call occurs, the HT95168 can automatically fix the caller ID receiving format
whether FSK or DTMF standard.
· You can alternately change the caller ID receiving format by pressing the [*] [*] [#] input.
· Each incoming call can be stored with a maximum of 14-digit phone number including one of the
digits with automatically added ¢0¢ when the phone number length is more than 9-digit, except
for area code set to screen ¢0¢ and mobile phone number with ¢13¢ prefix.
Incoming Call Check and Call Back
The HT95168 stores 27-set incoming calls and each call with 8-digit length or 21-set with 12-digit
or 19-set with 14-digit length.
· When the [Up] key is pressed, the LCD shows the [Incoming] icon and incoming call records
through last in first out, LIFO rule from latest record to earliest record until the end pointer. Each
incoming call is divided into two records, first is [Pointer-Date-Time], last is [Incoming phone
number which has a maximum of 14-digit].
· Oppositely, when the [Down] key is pressed, it shows first is [Incoming phone number], last is
[Pointer-Date-Time] through LIFO rule from the earliest record to the latest record until the end
pointer.
· Each incoming call record can be erased by pressing the [Delete] key.
· Each incoming call record can be dialed out by pressing the [Call back/Redial] key or the [Add
¢0¢ Call back] key.
Rev. 1.10
7
March 22, 2004
HT95168
Outgoing Call Check and Call Back
The HT95168 stores 8-set outgoing calls and each call with 14-digit maximum length.
· When the [Check] key is pressed, the LCD shows the [Outgoing] icon and outgoing call records
through LIFO rule from the latest record to the earliest record until the end pointer. Each outgoing call is divided into two records, first is [Pointer-dialing time], last is [outgoing phone number
which has a maximum of 14 digits].
· Each outgoing call record can be erased by pressing the [Delete] key.
· Each outgoing call record can be dialed out by pressing the [Call back/Redial] key or the [Add ¢0¢
Call back] key.
Redial
The Redial memory stores the latest phone called and the maximum digits are 32. When you
press the [Redial] key at off-hook state then the latest number will be dialed out immediately.
Add ¢0¢ Call Back
For convenience on having long distance calls, when you press the [Add ¢0¢ call back] key , it will
automatically dial out and add ¢0¢ prefix number before the phone numbers which are incoming
call or outgoing call or previous edit call.
Flash
When the [Flash] key is pressed, it will generate a 600ms break time.
R Key
When the [R] key is pressed, it will generate a 95ms break time.
Pause Key
When the [Pause] key is pressed, it will generate a 3.6 sec stop timing during Tone/Pulse dialing.
Long Distance Call Lock Function
When PDETE (Pad 43) is high at off-hook state, all the ¢0¢ prefixed phone numbers are inhibited to
be dialed out including recently dialed, previously dialed, incoming call call-back, outgoing call
call-back and add ¢0¢ call back, which means that long distance call function is locked.
Hand-free
The HT95168 provides hand-free function for talking convenience, which replaced the earpiece
with a speaker phone.
Rev. 1.10
8
March 22, 2004
HT95168
Fixed IP Number Dialing Out Setting
The [IP] is abbreviation of Internet Phone, which is serviced by ISP vendors. The ISP vendors provide customers with different specific prefix phone number (namely IP number) to dial the international call or long distance call from PSTN through their dedicated Internet to PSTN for the
purpose of reducing long distance cost.
For dialing out convenience, the HT95168 provides 11-set popular IP numbers defined by hardware as shown below in the diode connection figure. By means of diode connection placement
between COL0~COL3 and COL1~COL4, it can define 11 kinds of IP numbers as shown in the table below.
Dnm
¾
D01
D02
D12
D03
D13
D23
D04
D14
D24
D34
IP No.
17909
17920
17931
17930
17921
17951
17950
17908
17911
17910
193
C O L 0
C O L 1
C O L 2
C O L 3
D 0 1
C O L 1
C O L 2
C O L 3
D 0 2
D 1 2
D 0 3
D 1 3
D 2 3
D 0 4
D 1 4
D 2 4
D 3 4
C O L 4
· At On-hook state, press the [IP on/off] key for 2 seconds, then the LCD shows [IP on] and enable
the fixed IP dialing out function. Oppositely, pressing again the [IP on/off] key for 2 seconds, the
LCD shows [IP off] and disable this function.
· When the IP function is enabled, all long distance phone number prefixed with ²0² are automatically dialed out with a specific IP number before the original phone numbers.
· For example 1, if no diode connects to Columns and IP function is enabled, checking an incoming call [02152204293] then call back this number. What is the number dialed out? The correct
answer is [1790902152204293].
· For example 2, if the diode is crossed to COL1 and COL3 namely D13 and IP function is enabled, checking an outgoing call 07522829029 then call back this number. What is the number
dialed out? The correct answer is 1795107522829029.
Note
Rev. 1.10
The initial setting is IP off.
9
March 22, 2004
HT95168
LCD Panel Configuration
The advantages of the LCD panel shown below are bigger display and having a simple-clear feeling.
1 4
1
A
F
B
G
In c o m in g
S 1
O u tg o in g
S 2
N e w
S 4
R e p e a t
S 3
M e s s a g e
S 5
P r o te c tio n
S 6
1
2 4
G 1
G 0
M 7
M 6
M 5
M 4
1
2
3
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2B 2G 3B 3G 7G 7B 6G 6B 5G 5B 4G 4B 1G 1B
COM2
2C 2E 3C 3E 7E 7C 6E 6C 5E 5C 4E 4C 1E 1C
COM5
COM6
COM7
21
22
23
7F 7A 6F 6A 5F 5A 4F 4A 1F 1A
COM1
2D S6 3D 7D
COM4 COM4
Rev. 1.10
5
2A 2F 3A 3F
COM3
Note
4
D
C O M 0
C O M 1
C O M 2
C O M 3
S E G 1 5
S E G 1 4
S E G 1 3
S E
S E
C O
C O
C O
C O
PIN
COM0
C
E
S 7
6D
5D S5 4D
24
COM0
COM1
COM2
1D S7 COM3
14F 14A 13F 13A 12F 12A 8A 8F 9A 9F 10A 10F 11A 11F
COM5
14G 14B 13G 13B 12G 12B 8B 8G 9B 9G 10B 10G 11B 11G
COM6
14E 14C 13E 13C 12E 12C 8C 8E 9C 9E 10C 10E 11C 11E
COM7 14D S1 13D S2 12D
8D S4 9D S3 10D
11D
The recommended optimal operating voltage for the LCD panel is 0.93VDD and choose 3V/4.5V
LCD panel to fit 2-pcs or 3-pcs battery where VDD is 3.2V/4.8V.
10
March 22, 2004
HT95168
Application Circuits
T
R
R U Z
2 0 1
C 3 1
2 0 3 /2 5 0
C 2
2 2 2 /2 5 0
C 5
2 2 2 /2 5 0
R U Z 2
1 8 1
D 1 1
4 1 4 8
R 1 0
1 0 0 k W
R 1 2
1 0 0 k W
R 5 9
5 1 0 k W
R 6 0
5 1 0 k W
D 1
D 3
D 2
D 4
P D E T E
+
L IN E
D D
R 5 5
4 7 W
R 2 5
2 2 M
V
C 2 1
4 7 2
R 6 3
1 M 5
R 4
6 8 0 k W
Q 1
A 9 2
1
C 2 3
1 0 3
R 6 7
2 2 0 k W
S 1
L O C K
L 6
R 4 8
2 .2 M W
R 9
1 k W
R 1 5
1 k W
D 1 3
4 1 4 8
R 2 0
6 2 0 k W
R 2 7 R 3 6
1 M W 5 1 0 k W
R 5 4
1 2 M W
Q 2
A 4 2
R 5 6
+ 4 .3 M W
E 3
2 2 0 m F
C 1
1 0 3
C O N 2
C 1 4
1 5 1
R 1 4
1 .5 M W
C 3 3
5 6 p F
R D E T E
C 2 2
1 0 3
C 2 7
2 A 1 0 2
C 7
2 A 1 0 2
R O U T P
R O U T N
R 7
1 0 0 k W
R 3 7
1 .2 M W
R 6 2
1 0 0 k W
R 6 1
5 1 0 k W
1 N 4 0 0 7 X 4
G D
R 3
6 8 0 k W
R 1
1 5 0 k W
Q 2 0
9 0 1 4
E 1
1 0 U /1 0 0
D 1 6
4 0 0 7
D 1 0
4 0 0 7
D 5
D 7
D 1 4
4 1 4 8
V
V
D D
1
D 2 1
4 0 0 7
Q 5
A 9 2
R 2 4
3 K 3
X D P
C ID IN
C ID E N
E 9
2 A 1 0 4
R 6 8
1 0 M W
B A T
3 V
R 4 4
3 9 0 k W
Q 1 9
9 0 1 4
D D
Q 1 8
5 5 5 1
Q 1 7
5 4 0 1
R 2 2
1 0 0 k W
Q 3
9 0 1 4
D 2 0
4 0 0 7
R 8
1 0 k W
R 1 3
1 0 k W
C 6
4 7 2
D T M F
Q 7
A 4 2
R 5 3
3 9 k W
P IN 2
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
T 2
C 1 5
1 0 3 /2 5 0
R 5 7
5 .1 k W
N
E
S
S
P
F
R 2
2 2 0 k W
Q 6
9 0 1 4
V
S P 2
S P
D 2 3
4 0 0 7
R 6 9
2 .2 M W
D
R D E T E
R O U T N
R O U T P
G N D
C ID IN
P D E T E
R E
D T M
M U T
C ID E
X D
H K
L E
G D
D D
R 6
1 5 0 W
+
R E S
Z 1
1 2 V
R 2 6
8 2 0 W
R 2 9
1 2 0 k W
E 5
4 7 m F
C 4
1 0 2
C 9
2 A 1 0 3
L IN E
C 1 1
1 0 3
Q 8
9 0 1 4
R 2 8
2 2 k W
R 1 1
3 3 k W
M 2
R 7 7
5 1 0 k W
R 7 4
1 M W
Q 1 0
9 0 1 4
Q 1 6
9 0 1 5
R 3 0
5 1 0 k W
V
D 1 2
4 0 0 7
Q 9
8 5 5 0
C 1 6
1 0 3
R 3 9
5 1 0 W
R 3 1
1 8 W
R 3 4
1 0 0 W
R 3 2 R 3 3
7 5 W 4 7 0 W
H K S
R 3 7
5 .1 W
M 1
5 8 d b
R 5 0
5 .1 k W
D D
H O O K
V
R 7 5
5 1 0 k W
E 1 2
1 0 0 0 m F
C 2 0
3 3 3
M U T E
E 2
4 .7 m F
R 5
2 2 0 R
D D
R 2 1
1 M W
R 7 6
1 M W
+
C 3
2 A 1 0 3
C 1 0
2 A 1 0 3
C 1 2
1 U /2 5 0 V
D 6
D 8
1 N 4 0 0 7 X 4
+
R 3 8
9 .1 k W
R 4 0
5 .1 k W
R 4 1
1 0 0 W
D 9
4 0 0 7
E 6
4 7 0 m F
+
G D
S P
E 4
0 .4 7 m F
IN U S E
M U T E
R 4 2
1 2 0 k W
G D
Q 1 4
8 0 5 0
Q 1 3
8 0 5 0
R 4 7
5 1 0 W
R 6 6
6 8 0 W
E 7
1 0 0 m F
Z 2
5 .1 V
C 1 3
1 0 4
C 1 7
1 0 3
+
D 1 9
4 0 0 7
R 4 6
1 0 0 k W
R 5 8
1 2 0 k W
C 1 9
2 2 2
R 6 4
2 2 0 W
R O U T N
R O U T P
C 8
1 0 2
Q 1 1
9 0 1 5
R 4 5
1 k W
S P 1
R 4 9
1 k W
R 4 3
5 1 0 W
R 1 6
2 7 0 k W
IN U S E
D 2 2
4 0 0 7
R 6 5
2 2 0 W
L E D
R 1 9
1 k W
D 1 7
4 0 0 7
D 1 8
4 0 0 7
Q 1 5
9 0 1 4
+
Q 1 2
9 0 1 4
R 1 8
6 8 0 W
R 5 2
1 .5 k W
R 5 1
6 8 0 W
E 8
2 A 1 0 4
March 22, 2004
11
Rev. 1.10
+
+
HT95168
1
4
7
2
5
8
3
6
9
U P
D O W N
D E L
L E D
P A U S E
S E T
R
R O W 3
R O W 2
R O W 1
R D E T E
1
2
3
4
5
6
7
8
9
1 0
1 1
1
0
T P
T N
T E
0
1
2
3
4
5
X 1
3 2 7 6 8 H z
M U T
C ID E
X D
H K
G 1
G 1
G 1
G 1
S E
S E
S E
S E
L C D
N
S
P
E
5
4
3
2
X T
V D D
R E S
D T M F
H F I
N C
5 2
1 1
2 6
G N D
R O W
R O W
R O U
R O U
R D E
C O M
C O M
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March 22, 2004
12
Rev. 1.10
4 2
R O W 3
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HT95168
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
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Tel: 886-2-2655-7070
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Copyright Ó 2004 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.10
13
March 22, 2004