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TC9208N
HIGH TENSION SUSTAINING ANALOG FUNCTION SWITCH
TOSHIBA
TC9208,09N
TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC9208N, TC9209N
HIGH TENSION SUSTAINING ANALOG FUNCTION SWITCH
The TC9208N, TA9209N is a feather touch type function
change-over switch incorporating a high-tension
sustaining analog switches.
FEATURES
9 The construction of the analog switches is as follows :
TC9208N : 2 circuits 6 contacts
TC9209N : 2 circuits 4 contacts+tape monitor
0 The control system is operable by the (+) power supply
and the analog system is operable by the (+) and (-)
dual power supplies.
SDIP28-P-400-1.78
Weight : 2.29 (Typ.)
o The built-in buffer transistor enables it to directly drive the function display LED, etc.
o The TC9208N enables sequential change-over of input by the SHIFT input in additions to direct
change-over of input.
It If input is changed over when the tape monitor is in operation on
can be released automatically (auto monitor OFF).
PIN CONNECTION
TC9208N
GNDI] 1 V 28 [IVDD
WI] 2 27 [rss-LI
mu 3 26 [ISE-ce
osct 4 25 ISE-LS
MUTEI] 5 24 um:
WI] 6 23 HFLS
IN-AI li 7 22 [IE
IN-A2r a 21 [IIN-B1
IN-Aalj 9 20 [liN-Bz
IN-Asst 10 19 [||N-B3
IN-ASIJ 11 18 [IiN-B4
1N-Atsr 12 17 Jmris5
COM-AIJ 13 16 F-iss
vsst 14 15 [ICOM-B
the TC9209N, the tape monitor
TC9209N
GNDI] 1 V 28 r/oo
W11 2 27 [IE
MI] 3 26 JSE-ce
osct 4 25 [IE
MUTEIJ 5 24 um
M00511 6 23 [|T_MI
IN-AI t 7 22 um
1ro-/ctt 8 21 EIIN-B1
IN-Ast 9 20 EIIN-Bz
IN-A4|] 10 19 [IIN-B3
COM-AI t 11 18 EIIN-B4
IN-ATIJ 12 17 rcoM-is1
COM-Azll 13 16 F-BT
vsslj 14 15 [ICOM-Bz
2001 -06-1 9
TOSHIBA
TC9208,09N
BLOCK DIAGRAM
TC9208N
TC9209N
TIMING GENERATION/SYSTEM CONTROL CIRCUIT
MULTIPLE FUNCTION
KEY INPUT MEMORY
DETECTION REGISTER
CIRCUIT CIRCUIT
DISPLAY
DRIVER
CIRCUIT
ANALOG SWITCH ANALOG SWITCH
IN-A‘I \l
IN—AZ co
|N—A3 to
|N-A4 —‘
|N-A6 —‘
Vss -‘
COM-B A
IN-B6 —‘
IN-BS ‘
COM—A ‘
TIMING GENERATION/SYSTEM CONTROL CIRCUIT
MULTIPLE FUNCTION
KEY INPUT MEMORY
DETECTION REGISTER
CIRCUIT CIRCUIT
DISPLAY
DRIVER
CIRCUIT
DRIVER TAPE
CIRCUIT MONITOR
REGISTER
ANALOG SWITCH ANALOG SWITCH
|N—B4 ‘
CIRCUIT
M N '-
CD to m
6 MODE
CIRCUIT
7 8 9 1 11 1 1 1 1 1 1
'" N m st '" _ N V! N _ '"
< < < < < < < m m m m m m m m
k k g , , k , > , i: i k k k i:
f) 8 8 f.)
2 2001-06-19
TOSHIBA TC9208,09N
PIN FUNCTION
1. TC9208N, TC9209N Common Pins
m“ SYMBOL PIN NAME FUNCTIONS AND OPERATIONS REMARKS
1 GND Ground pin .
14 V (-) Power suppl In case of the single power supply, use by -
ss y grounding the GND and VSS pins.
28 VDD (+) Power supply
When "L" level signal is input, the inside
is initialized.
-...__ . . . . The select pin selects SEL 1 and the tape With a built-in
2 INT Initialize input monitor is turned OFF on TC9209N. puII-up resistor.
When "H" level signal is input, the normal
operation starts.
When "L" level (GND level) signal in input,
all inputs and outputs are inhibited and
3 W Inhibit input power dissipation becomes low. CMOS input pin.
When "H" level signal is input, the normal
operation starts.
. . Timings required in the IC are generated
4 OSC Oscillator input/output by external C and R. -
When the analog switch is changed over
. by the select input pins (SEL1 to 5) and .
5 MUTE Mutiny output ”SHIFT pins, "H" level muting output is CMOS output pm.
generated for a fixed period of time.
2001 -06-1 9
TOSHIBA TC9208,09N
2. TC9208N Pins
KILL“ SYMBOL PIN NAME FUNCTIONS AND OPERATIONS REMARKS
Whenever this pin is set at "L" level, the
shift by one to the upward direction is . . .
6 SHIFT Shift select input pin made from the current §TET position. 1/,i2/2',f,te-tsto,
SEL1-9SEL2-9SEL3-9SEL4-9SEL5-9SEL6 p
-aSEjl-.
7 IN-AI Signal input-1 The analog switch circuit of 2-circuit and
281 12:12 6-contact type.
- . . - Compatible with SEL-N =IN-N
20 IN-BZ Signal input 2
9 lN-A3 Si I . t 3 "u-Io-Wil-
19 IN-BB Igna mpu - "u-eo-Wil-
IO lN-A4 Si I . t-4 N3: M] _
18 lN-B4 Igna mpu - -
"u-oo-Wil-.
11 lhl-A5 Si I . t 5
17 IN-BS Igna mpu - "si-so-WI-
12 IN-Ati Si I . t 6 mo-so-M--
16 lhl-B6 Igna mpu -
13 COM-A . . COMO—
15 COM-B Signal output pin
27 SEL1 When "L" level signal is input, the selected
26 SEL2 analog switches are turned ON. With a built-in
25 SEL3 Analog switch select As the m pins serve as the input/output driver transistor
24 SEL4 input/output ports, the selected m pin is fixed at "L" and pull-down
23 SEL5 level even when the input key is turned resistor.
22 SEL6 OFF.
2001 -06-1 9
TOSHIBA TC9208,09N
3. TC9209N Pins
KILL“ SYMBOL PIN NAME FUNCTIONS AND OPERATIONS REMARKS
The normal operation at "L" level.
When this pin is set at "H" level, the tape
Tape monitor mode nLnitor is automaticallyt_urned OFF
6 MODE . (TMO="L" level) if the SEL input is CMOS input pin.
change-over input . . .
changed over during the tape monitoring
(W: "H" level).
(Auto Monitor OFF Mode)
7 IN-AI . . . . . . . .
21 IN-B1 Signal input-I The analog switch circuit is of IZ-citcmt and
4-contact type +tape monitor circuit.
J, (tfit Signal input-2 Compatible with SEL-N =1N-N.
9 IN-A? . . IIN-l o-KI-
19 IN-B? Signal input-3 "H o-W-.
10 IN-A4 Signal input-4 IN-3 o-W-. -
18 lhl-B4 IN-4 cr-W-
11 COM-A1 . .
17 COM-B1 Recording output pm cow o-.
12 IN-AT Tape monitoring IN-T : E2 X:
16 IN-BT input pin
13 COM-A2 . . COM-2 o-
15 COM-B2 Signal output pin
27 SET With a built-in
26 ffiTLT? Analog switch select The operation is the same as that of the driver transistor
25 SE-L3 input/output TC9208N. and a pull-down
24 -irirLTi resistor.
Whenever "L" level signal is input, the
23 Tim Tape monitor tape monitor switch is turned ON/OFF With a built-in
change-over input repeatedly. pull-down resistor.
When the tape monitor switch is ON, the
TMT5 pin becomes "L'' level output.
22 'tTi7ft5 Tape monitor display The TMO pin houses the a driver With a built-in
output
equivalent to that of the TE-L pin, LED, etc.
can be directly driven.
driver transistor.
2001 -06-1 9
TOSHIBA TC9208,09N
DESCRIPTION OF OPERATION
1. Trt. Pins
These pin are the analog switch select input and LED driver output I/O pins.
When "L" level signal is input, the driver is turned ON by the internal latch circuit and the pins are
fixed at "L" level even when the input key is turned OFF.
VDD VDD
To Analog Switch
I CP CL
Latch Circuit
As SEL1 through SEL6 are mutually reset on the TC9208N and SEL1 through SEL4 are mutually reset
on the TC9209N, all pins except the input pin are kept OFF.
2. Switch change-over timing and muting output
To prevent abnormal sounds such as pop sound generated when the analog switch is changed over,
muting signal is output.
This muting signal output time and m pin (W pin and SHIFT pin) chattering prevention time are
decided by oscillation frequency of the OSC pin.
E input I I
OSC -lssl"sslsslss,tss-.
-'r-r I I I
Driver output l : g ',
Muting output l
-i' I VI
Analog Switch Change-over X
.y.f fosc=50Hz
t : Chattering prevention time = (1 HOSC) zZOms
TM : Muting time = (1 HOSC) x4280ms
0 At time of SHIFT input of TC9208N and TMT input of TC9209N, the IC operates at the above
timings.
0 As the multiple input inhibit circuit is built in the m input pins, if more than 2 Stir. pins are
selected simultaneously, all the analog switches are kept in the OFF state and the muting signal
is successively output during the period of that multiple inputs.
Further, if multiple inputs are released, the last input is accepted.
0 Oscillation frequency of the OSC pin may vary depending upon fluctuation of IC and supply
voltage. (See the attached graph.)
6 2001-06-19
TOSHIBA TC9208,09N
3. Initialization and Backup of Switches
0 When the Tfir, pin is set at "L" level, the switches are initialized.
TC9208N : SEL1 (IN-I-SCO))"
TC9209N : SEL1 (lN-1-9COM1), Tape Monitor OFF
0 When the IN-H pin is set at "L" level, all the inputs and outputs are cut off and the IC is placed
in the inhibit status. Under this status, the internal circuit scarcely consume current and
therefore, the backup for a long time becomes possible. During the backup, it becomes possible
to lower VDD to 4.0V.
0 Backup by Battery, etc. It Backup by Capacitor
_l:"MZI_
0 When no backup is required
7 2001-06-19
TOSHIBA
TC9208,09N
4. Power Supply
The separate power supply system is provided for the analog switches and the control unit. The(+)
and (-) dual power supplies are used for the analog switches while a single supply is used for the
control unit.
Dual power supplies used
Control Signal Analog Signal
.fr/""ss,s,.,
Control Signal Analog Signal
(Caution) When a single power supply is used by using the vss and GND pins commonly,
only 1/2 voltage of dual power supplies can be applied as withstanding voltage
between VDD and GND is a half of that between VDD and V55. (VDD-GNDS 18V)
2001 -06-1 9
TOSHIBA
TC9208,09N
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage (1) VDD'VSS -0.3--36 V
Supply Voltage (2) VDD-GND -O.3~20 V
Input Voltage VIN VSS-0.3--VDD+0.3 V
Power Dissipation PD 300 mW
Operating Temperature Topr -40--85 "C
Storage Temperature Tstg -65--150 ''C
ELECTRICAL CHARACTERISTICS (Unless otherwise
specified, VDD = 15V, VSS = -15V, GND = 0V, Ta = 25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
. Dual power
Operating Supply Voltage (1) VDD-USS - supplies operation 16 34 V
. Single power
I V I 2 V - ND - -- 1 V
Operating Supply oltage ( ) DD G supply operation 8 8
Operating Supply Current IDD 1 No Load, No input - 0.01 1.0 mA
D h I . I
Backup Voltage VB ata o ding vo tage 4.0 ~ 18 V
1 range
1/DD=4.0V
Backup Current IB VSS=GND=0V - 1 10 pA
" " VDD
Input Voltage H Level VIH SELI--6, ('rfi7ff) x0.7 VDD V
TNT", INH, 59151:, MODE
"L" Level VIL ( ) GND ' VDD
I t C t "H" Level IIH TNifrf V|H=15V -1.0 - 1.0 A
npu urren "L" Level IIL (MODE) VIL=0V - 1.0 - 1.0 #
Input Pull-up Resistance RIN - W, SHIFT - 47 - k0
"H" Level 'OH (1) SELI--6, VOH = 14V - -0.3 -0.1
Output Current ( ) "L" Level IOL (1) 1 (TMO) VOL=5V 15.0 20.0 - m
"H" Level IOH (2) VOH =14V - -o.3 -o.1
Output Current (2) "L" Level 'OL(2) MUTE VOL=5V 0.1 0.3 - mA
Operating Frequency fOSC - RX=47kQ, Cx=0.47pF - 50 - Hz
Analog Switch ON Resistance RON - - - 80 100 n
Analog Switch OFF Leak |OFF - VIN-O/SSO/DD - - i0.1 PA
O‘veralll Harmonic THD le =1kHz - 0.001 - %
Distortion Factor VIN =1vrms
Crosstalk CT - Rg =6000, RL=47kQ - 100 - dB
Noise Output Voltage VN BW=20Hz--20kHz - 1.0 - PA/rms
9 2001-06-19
TOSHIBA TC9208,09N
TEST owns: (IDD, a. 6:20:
[oH(1)/loL(1)
TC9 2 o m N
THD I Vin
RON I VDD/N/ss
CO VDD--6V. vss-- -6V (3) VDD--12Vr vss-- -12V
© VDD=9V, vss= -9V © VDD=15V, VSS-- -15V
iii. S: ii
D a So
hN=1kHz
Rg--600n
0.001 RL--47kn
HPF--80kHz
0.3 Pow 0.1 ow l w
Vin (Vrms)
10 2001-06-19
TOSHIBA TC9208,09N
APPLICATION CIRCUIT
1. Example of Direct Select Application Circuit
(TC9208N) (TC9209N)
2. Example of Application Circuit by SHIFT Input (TC9208N)
Switch
11 2001-06-19
TOSHIBA TC9208,09N
EXAMPLE OF APPLICATION CIRCUIT TC9208N (Not back up mode)
W1 I TUNER
'os-tfi)-, I AUX
s-nos-ay-l I TAPEI
---(fiy-1 I TAPE?
REMOTE CONTROL ." (ii) I -s-CD
_.>— - o c
---(fiyn I PHONO
MUTE SIGNAL
AMP AMD
© © © © (0); © © © © ©
T A T T c P P c T T A T
U U A A D H H D A A u u
N x P P o "-,r-o o P P x N
E E E N N E E E
R 1 2 o OUTPUT o 2 1 R
_-v---' c-v---'
L-ch INPUT R-ch INPUT
X This resistor protect IC from over current.
R =1.2-4.7kn
12 2001-06-19
TOSHIBA TC9208,09N
PACKAGE DIMENSIONS
SDIP28-P-400-1.78 Unit : mm
28 15 "i
J""''1r-1rOC''lf-ll-1l-1r-1f-1i-lr-nFTr-1I-'l O
3) 3 g
l-It-JI-lL-llc-JL-lL-dt-ICJ/lr-lr-IL:
26.1MAX
25.6K0.2
“a r'?-
-a- m.
1 .243TYP 04610.1
Weight : 2.29 (Typ.)
13 2001-06-19
TOSHIBA TC9208,09N
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
14 2001-06-19
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