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TC9260F-TC9260P
ELECTRONIC VOLUME
TOSHIBA
TC9260P/F
TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC9260P, TC9260F
ELECTRONIC VOLU M E
The TC9260P and TC9260F are an optimum CMOS which
has been designed for electronization of volume control
of audio equipment, etc.
FEATURES
9 Attenuation can be controlled from OdB to -78dB by
2dB/step.
o This ICs feature a built-in loudness circuit. (20dB tap)
0 The volume, balance and loudness circuits can be
controlled by serial data.
It Chip select input allows control of up to 2 of these chip
on the same bus.
0 Polysilicon resistors enables low-distortion, high-
performance volume system.
0 Package is DIP16 and SOP16.
PIN CONNECTION BLOCK DIAGRAM
, l" L-ch LD1
VOLUME
5 LD2 LD2
6 A-GND
8 DATA A-GND
TC9260P
DlP16-P-300-2.54A
TC9260F
SOP16-P-300-1.27
Weight
DIP16-P-300-2.54A : 1.0g (Typ.)
SOP16-P-300-1.27 : 0.169 (Typ.)
VOLUME
11 A-GND
CS DATA DECODER, STB GENERATOR 1 STB
CK SHIFT REGISTER (13bit) 9 DATA
2001 -06-1 9
TOSHIBA TC9260P/F
PIN FUNCTION
Kl"?! SYMBOL PIN NAME FUNCTION AND OPERATION NOTE
1 l/SS Digital ground pin
16 VDD Power supply pin - -
125 :25: Volume output pin 0 Volume circuit
3 L-IN . . OUT
14 R-IN Volume input pm IN o-rs,
4 L-LD1 Tap output pins for LDI CY-d" "
13 R-LD1 loudness (1) LD2 -
5 L-LD2 Tap output pins for A-GND LS2
12 R-LD2 loudness (2)
6 L-GND . o Loudness ON : LS1=ON, LSZ=OFF
11 R-GND Analog ground pins
0 Input pin for designating chip select code.
This pin correspond to bit "CI" which is chip
7 CS Chip select input pin select bit in serial data. -
When CS="1" and C1="1", Data is valid.
When CS="0" and C1="0", Data is valid.
8 CK Clock input pin Clock input for data transfer.
Attenuation channel selection data input Low
9 DATA Data input pin terminal. threshold
Data consists of 13 bits and input by CK signal. value input
Attenuation setting signal take from DATA and .
10 STB Strobe input pin CK terminals are latched when this terminal is pins
placed at "H" level.
2 2001-06-19
TOSHIBA TC9260P/F
OPERATION
1. Volume circuit
Volume circuit consist of ladder resistor and analog switch.
Tap for loudness is connected to step 10 (20dB). Loudness operation is controlled by LS1/LS2
switches.
It Equipment circuit It Volume step and attenuation
ovo— STEP /Tifl'it STEP 311%
IN r so so 0 (dB) S21 42
Sl S1 2 S22 44
S2 4 S23 46
I , I S3 6 S24 48
28-5k0< E E E S4 8 S25 50
SS 10 S26 52
LSI ' S9 S6 12 S27 54
m Mi i. .510 S7 14 S28 56
39m r S8 16 S29 58
'"" ' S11 S9 18 S30 60
LD2 o-o .512 S10 20 S31 62
S11 22 S32 64
fll 20.25knd E E 1 S12 24 S33 66
LS2 , , I s13 26 S34 68
S14 28 S35 70
'S39 s15 30 S36 72
A-GND o- k. s40 S16 32 S37 74
S17 34 S38 76
S18 36 S39 78
S19 38 S40 00
S20 40
o Loudness ON .' LS1=ON, LS2=OFF
It Loudness OFF : LS1=OFF, LS2=ON
3 2001-06-19
TOSHIBA TC9260P/F
2. Setting volume values
Optional attenuation data is input through the DATA, CK and STB terminals.
Data consists of 18 bits as follows.
(1)Serial data format
DATA /L)(RXD1)(o2)(o3)(Dg0(Ds)(os)(LD)(c1Xc2l(c3)(c0
(2) Chip select code (C1~C4)
Chip select code is set to use serial bus line in common with other ICs.
Data C2, C3, C4 is fixed 0, l, 1 in TC9260P, TC9260F.
When level of CS input pin (7pin) correspond to C1 bit, data is valid.
cs C1 C2 C3 C4
" 1 " 1 0 1 1
"0" 0 0 1 1
(3) L is left-channel select data ; R is right-channel select data. (L/R)
When L=1, left-channel volume is set ; when R=1, right-channel volume is set.
(When R=L= 1, both channel volume are set simultaneously).
(4) LD is loudness setting data
When LB: "o", loudness is OFF (L51=OFF, LS2 =ON)
When LD-- "1", loudness is ON (LS1=ON, LS2 =OFF)
4 2001-06-19
(Note) Note that if data other than those listed above are input,
undefined.
(6) Serial data timing
TOSHIBA TC9260P/F
(5)Volume setting data (D1--D6)
List of volume data and step
WALES? DI D2 D3 D4 D5 D6 V&EL'J‘AEE DI D2 D3 D4 D5 D6
OdB o o o o o o 40dB o o 1 o 1 o
2 1 0 o o o 0 42 1 o 1 o 1 o
4 o 1 o o o o 44 o 1 1 o 1 o
6 1 1 o o o o 46 1 1 1 o 1 o
8 o o 1 o 0 o 48 0 o o 1 1 0
IO 1 o 1 o o o 50 1 o o 1 1 o
12 o 1 1 o o o 52 0 1 o 1 1 o
14 1 1 1 o o o 54 1 1 o 1 1 o
16 o o o 1 o o 56 o o 1 1 1 o
18 1 o o 1 o o 58 1 o 1 1 1 o
20 o 1 o 1 o o 60 o 1 1 1 1 o
22 1 1 o 1 o o 62 1 1 1 1 1 o
24 o o 1 1 o o 64 o o o o o 1
26 1 o 1 1 o o 66 1 o o o o 1
28 o 1 1 1 o o 68 0 1 o o o 1
30 1 1 1 1 o o 70 1 1 o 0 0 1
32 o o o o 1 o 72 o o 1 o o 1
34 1 0 o o 1 o 74 1 o 1 0 o 1
36 o 1 0 o 1 o 76 o 1 1 o o 1
38 1 1 o o 1 o 78 1 1 1 o o 1
oo o o o 1 o 1
Input CK, DATA and STB according to the following timing.
a>1ps. b>2/zs, c>2prs
volume values are
2001 -06-1 9
TOSHIBA TC9260P/F
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VDD -0.3--15 V
Input Voltage VIN -0.3--VDD+0.3 V
Power Dissipation PD 300 mW
Operating Temperature Topr -40--85 "C
Storage Temperature Tstg - 55-150 "C
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta =25°C, VDD=9V)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Supply - C)
Voltage VDD - Ta.-.. 40 85 C 4.5 9.0 12 V
Operating Supply
Current DD 1 No load - 0.3 1.0 mA
"H" Level VIH (1) CK, DATA, STB input pin 4.0 -- VDD
"H" Level VIH (2) . . VDDXO.7 - VDD
Input Voltage "L" Level VIL(2) - CS input pm 0 _ VDDX0-3 V
"H" Level IIH . . 1/IH=VDD -1 - 1
- All n t n
Input Current "L'' Level 'IL I pu Pl lhL=0V -1 - 1 PA
Volume Resistance RUR - Loudness "OFF" 20 28 37 k0
Analog Switch ON
Resistance RON - - - 250 600 n
Attenuation Error AATT - - 0 t2 dB
Volume Balance Volume error between left
- - + 0
Between Left And Right ARVR and right 0 -+3 A
Total Harmonic
THD = OdB - . - o
Distortion 1 lt 3:342 0 01 A
Maximum Attenuation ATTM 1 Rm "100;? code - 100 - dB
Cross Talk CT 1 2r=, 6000 OdB - 100 - dB
Output Noise Voltage VN 1 g- - 2.0 - erms
Operation Frequency fop - CK, DATA, STB - - 500 kHz
. . . TCK CK input - 0.5 1.0
Minimum Pulse Width TSTB - STB input - 1.0 2.0 #5
6 2001-06-19
TOSHIBA
TEST CIRCUIT 1
APPLICATION CIRCUIT
TC9260P/F
OUTPUT
e, 35/
600.0 6000
3 C(F-'11ke
4 D ir' /CV>/VM
Sts SG s '
CPs Ch l
. c}, ly . T
(1/2 VDD) t 7 310 STB (1/2 VDD)
f-l 48: Ci)-- DATA
'0- 1/2 VDD
\ I J t
1 vss VDD 16
" f" Ch
" u, is, a OUTPUT}R_Ch
+" - (i), Tir, - 3* INPUT
R1%_c|1
4 LDI LD1
1/2 v 5 LD2 LD2
Cir.,'
7 CS STB
r--,02 CK DATA TO CPU
l l q,
(Note) 0 L-ch circuit is loudness operation, R-ch circuit is without loudness.
R1=8.2k0, C1=1500pF, C2 =0.1PF
o For preventing noise when loudness is turned on or off. R=220kn--470kn
o High-frequency digital signals are input to pins CK, DATA and STB. Since these
signals may cause noise in analog circuits, either use shield wire for CK, DATA,
and STB signal lines, or design the pattern so that these signal lines are protected
by the ground line.
2001 -06-1 9
TOSHIBA
TH D - Vout
fin =1kHz, Rg=6009,
RL=100kQ, HPF =20Hz
LPF = 80kHz
0.01 0.1 1 10
Vout (vrms)
LD Characteristics
TC9260P/F
2001 -06-1 9
TOSHIBA TC9260P/F
PACKAGE DIMENSIONS
DIP16-P-300-2.54A Unit : mm
[-1r'-'e1r-nF'--'1i-1l-1ei'-1
6.4:t0.2
V'-''-''''-'''-''
19.75MAX
19.25i0.2
03:51:01
0.735TYP . . i l 0.5i0.1_30'25 (ii)
Weight : 1.0g (Typ.)
9 2001-06-19
TOSHIBA
PACKAGE DIMENS
SOP16-P-300-
HHHHHHHH "
5 31:0 2
7.8i0.3
0.705TYP
10.8MAX
10.3:t0.2
tllllildtlleili,
l1 9MAX
Weight : 0.169 (Typ.)
o 15:02
tiitir'
TC9260P/F
Unit : mm
(3 00 mil)
0.15”-1
0.8i0.2
2001 -06-1 9
TOSHIBA TC9260P/F
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.
11 2001-06-19
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