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M62421SP/FP
Tone and Volume Controller with 2 Line Control
REJ03F0208-0201 Rev.2.01 Mar 31, 2008
Outline
M62421SP/FP is the tone and volume controller with 2 line control. This IC can apply the broad application because of low noise and distortion.
Feature
* Tone (Bass/Treble) control and 1 dB step volume control are enabled. * Low noise and low distortion. VNO = 4.5 Vrms, THD = 0.1% max * Controlling by 2 Line serial data.
Application
* Mini-Stereo, etc
Recommended Operating Condition
Supply voltage range: 5.5 ~ 9.5 V (analog), 4.5 ~ 5.5 V (digital) Rated supply voltage: 9 V (analog), 5 V (digital)
System Block Diagram
Lch IN VOLUME
BASS TREBLE
Lch OUT TONE CONTROL
Rch IN VOLUME D A T C L K
BASS TREBLE
Rch OUT TONE CONTROL
MPU
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 1 of 13
M62421SP/FP
Block Diagram
SIMOUT2 SIMIN2 CH2 IN BASS2 AGND DVDD
AVDD
OUT2
TRE2
20
19
18
+ -
17
16
15
14
13
12
11
420
1.8 k VR3
SIMAMP2
1.8 k VR5
420 200 k 200 k
117 k ref S2 S4 S6 S8
TONE AMP2
6.4 k VR2 ref + -
VOLAMP2
+ - 6.4 k
ref VR1
VOLAMP1
CONTROL LOGIC
6.4 k + -
6.4 k
TONE AMP1
ref ref
S1 S3 S5 S7
200 k 200 k VR5 1.8 k 420
117 k SIMAMP1 VR3 1.8 k + -
420
1
REF
2
CH1 IN
3
SIMIN1
4
SIMOUT1
5
BASS1
6
TRE1
7
OUT1
8
DGND
9
DAT
10
CLK
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 2 of 13
CS
+ -
M62421SP/FP
Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Name REF CH1 IN SIMIN1 SIMOUT1 BASS1 TRE1 OUT1 DGND DAT CLK CS DVDD AGND OUT2 TRE2 BASS2 SIMOUT2 SIMIN2 CH2 IN AVDD I/O I I I O I I O -- I I I -- -- O I I O I I -- Description Reference voltage terminal for analog Input terminal (ch1) Pin for capacitor of simulated inductor 1 Pin for capacitor of simulated inductor 1 Pin for capacitor of ch1-side bass setting Pin for capacitor of ch1-side treble setting Output terminal (ch1) Digital GND I/O terminal of DATA 2 line bus format Input terminal of CLOCK 2 line bus format Chip select terminal VDD for digital circuit GND for analog circuit Output terminal (ch2) Pin for capacitor of ch2-side treble setting Pin for capacitor of ch2-side bass setting Pin for capacitor of simulated inductor 2 Pin for capacitor of simulated inductor 2 Input terminal (ch2) VCC for analog circuit
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 3 of 13
M62421SP/FP
Absolute Maximum Ratings
Item Analog supply voltage Digital supply voltage Power dissipation Thermal derating ratio Operating temperature Storage temperature Symbol AVdd DVdd Pd K Topr Tstg Limits 10.0 7.0 750 (SP) 550 (FP) 7.5 (SP) 5.5 (FP) -20 ~ +75 -40 ~ +125 Unit V V mW mW/C C C Condition
Ta 25C Ta > 25C
Thermal Derating
Power dissipation Pd (mW)
1200 1000 800 600 400 200 0 0 25 50 75 FP
375 mW 275 mW
SP
750 mW 550 mW
100
125
150
Ambient Temperature Ta (C)
Recommended Operating Condition
(Ta = 25C unless otherwise noted)
Item Analog supply voltage Digital supply voltage H level input voltage (logic circuit) L level input voltage (logic circuit) Symbol AVDD DVDD VIH VIL Min 5.5 4.5 0.7 DVDD 0 Typ 9.0 5.0 -- -- Max 9.5 5.5 VDD 0.3 DVDD Unit V V V V
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 4 of 13
M62421SP/FP
Electric Characteristics
(Ta = 25C, AVdd = 9 V, DVdd = 5 V and bass and treble = 0 dB unless otherwise noted) (1) Supply Voltage
Item Analog supply current Symbol Icc Min -- Limit Typ 10 Max 20 Unit mA Condition
Digital supply current
Idd
--
0
2
A
* * * * * *
AVdd = 9.0 V measure terminal = 20 pin no signal input DVdd = 5 V measure terminal = 12 pin no signal input
(2) I/O Characteristics
Item Maximum input voltage Symbol VIM Min 2.0 Limit Typ 3.2 Max -- Unit Vrms Condition 2, 19 pin input 7, 14 pin output RL = 10 k, THD = 1%, f = 1 kHz ATT = -6 dB 7 pin, 14 pin, no signal Vin = 0 dBm, FLAT, f = 1 kHz 2 ~ 7 pin, 19 ~ 14 pin gain IHF-A filter no signal Rg = 10 k 7, 14 pin 7 pin, 14 pin f = 1 kHz Vo = 0.5 Vrms, RL = 10 k LPF = 30 kHz RL = 10 k S: Vin = 1 Vrms, f = 1 kHz M: Rg = 10 k, IHF-A filter
Output voltage Gain Output noise voltage
Vodc Gv Vono
4.35 -2 --
4.5 0 4.5
4.65 2 10
V dB Vrms
Total harmonic distortion
THD
--
0.007
0.1
%
Channel separation
CT
--
-100
-70
dB
(3) Tone Characteristics
Item Tone control gain (bass) Tone control gain (treble) Symbol Gbassb Gbassc Gtrebb Gtrebc Min 9 -15 9 -15 Limit Typ 12 -12 12 -12 Max 15 -9 15 -9 Unit dB dB dB dB f = 100 Hz f = 10 kHz Condition
(4) Volume Characteristics
Item Maximum attenuation Minimum attenuation Symbol ATTmax ATTmin Min -108 -1.5 Limit Typ -100 0 Max -80 1.5 Unit dB dB Condition f = 1 kHz, Vin = 0 dBm 2 pin ~ 7 pin 19 pin ~ 14 pin gain IHF-A-filter
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 5 of 13
M62421SP/FP
Function Explanation
Equivalent Circuit of Tone Control The resonance circuit is able to construct by using built-in amplifier for simulated inductor. (Shows the constant as follow)
Inside IC
R3 C1
C2
R1 ( = 1.8 k)
-
+ SIMAMP R2 ( = 117 k)
ref
Figure 1 The circuit used simulated inductor Center frequency:
f0 = 1 / 2 Q= C1 * C2 * R1 * R2 [Hz]
(C2 * R2) / (C1 * R1)
Example:
BASS band (f 100 Hz) R1 = 1.8 k, R2 =117 k C1 = 0.47 , C2 = 0.022
ref L C1 R3
Figure 2 The equivalent circuit used L Figure1 is equal to figure2. The following relation is concluded. L = C2 * ER1 * ER2
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 6 of 13
M62421SP/FP
Input Data Format
Input direction D0 0/1 D1 0/1 D2 D3 D4 D5 VOLUME D6 D7 D8 D9 0/1 D10 0 D11 0 0/1 TREBLE BASS 1 1 1 0 D12
0: BOTH 1: ONLY 1CHANNEL
These functions are effective only VOLUME data
0: 1ch 1: 2ch
0: MUTE OFF 1: MUTE ON DATA SELECT 0: VOLUME/MUTE 1: BASS/TREBLE If CS pin (11 pin) is "L" 0, and if "H" 1.
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 7 of 13
M62421SP/FP Volume Control Volume Code
ATT 0 dB -4 dB -8 dB -12 dB -16 dB -20 dB -24 dB -28 dB -32 dB -36 dB -40 dB -44 dB -48 dB -52 dB -56 dB -60 dB -64 dB -68 dB -72 dB -76 dB -80 dB - dB D2 H L H L H L H L H L H L H L H L H L H L H L D3 L L H H L L H H L L H H L L H H L L H H L L D4 H H L L L L H H H H L L L L H H H H L L L L D5 L L L L L L H H H H H H H H L L L L L L L L D6 H H H H H H L L L L L L L L L L L L L L L L ATT 0 dB -1 dB -2 dB -3 dB D7 H L H L D8 H H L L
Tone Level Control Tone Code
Bass 12 dB 10 dB 8 dB 6 dB 4 dB 2 dB 0 dB -2 dB -4 dB -6 dB -8 dB -10 dB -12 dB Note: D7 L L L L L L L H H H H H H D6 H H H L L L L L L L H H H D5 H L L H H L L L H H L L H D4 L H L H L H L H L H L H L D3 L L L L L L L H H H H H H D2 H H H L L L L L L L H H H Treble D1 H L L H H L L L H H L L H D0 L H L H L H L H L H L H L
Not used "HHHH", "LHHH", "HLLL"
Mute Control On condition D9 = 1, MUTE can be set up. In MUTE, VOLUME LEVEL is set up VOL = - automatically.
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 8 of 13
M62421SP/FP
Data and Clock
CLK D0 DAT Latch signal "H" Latch signal is read by CLK fall edge. D1 D2 D3 D10 D11 D12
DATA is read by CLK rise edge.
Bus Line Timing Specification
tcr
75% 25% tr tWHC tf tWLC
tSD
tHD
Item CLK clock frequency The HIGH period of the clock The LOW period of the clock Rise time of CLK line Fall time of CLK line Set-up time DATA Hold time DATA
Symbol tcr tWHC tWLC tr tf tSD tHD
Min 4 1.6 1.6 -- -- 0.8 0.8
Max -- -- -- 0.4 0.4 -- --
Units s s s s s s s
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 9 of 13
M62421SP/FP
Level Diagram
INPUT TERMINAL CH1 IN G1 - + VOLAMP1 ref G1 TONEAMP1 6.4 k 6.4 k - + OUTPUT TERMINAL CH1 OUT -12 dB ~ +12 dB G2
0 dB ~ - dB
117 k ref
- +
1.8 k
INPUT TERMINAL CH2 IN Same to CH1 OUTPUT TERMINAL CH2 OUT
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 10 of 13
M62421SP/FP
Logic Circuit
Analog block
- +
ref
TONE AMP1
VOLAMP1
+ -
Level shifter
Level shifter
Decoder,Iatch for volume control Decoder,Iatch for tone control

CS
Timing generator

DAT Shift register CLK
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 11 of 13

M62421SP/FP
Application Example
OUT2
ref 0.033 F 0.022 F 0.47 F 2.2 F
DVDD
2.2 F IN2 VCC 20
AGND DVDD or GND
19
18
+ -
17
16
15
14
13
12
11
420
1.8 k VR3
SIMAMP2
1.8 k VR5 420 200 k 200 k
TONE AMP2
117 k ref S2 S4 S6 S8
VR2
6.4 k
+ -
+ -
6.4 k
ref
VOLAMP2 VOLAMP1 + -
CONTROL LOGIC
ref VR1
6.4 k
+ - TONE AMP1
6.4 k
ref ref
S1 S3 S5 S7
200 k 200 k VR5 1.8 k 420
117 k SIMAMP1 VR3 1.8 k 420
+ -
Reference circuit example
470 F 4.7 k 4.7 k
1
2
3
4
5
6
7
8
9
10
0.022 F Reference voltage 2.2 F
0.47 F 0.033 F ref MPU OUT1 DGND 2.2 F
IN1
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 12 of 13
M62421SP/FP
Package Dimensions
JEITA Package Code P-SDIP20-6.3x19-1.78 RENESAS Code PRDP0020BA-A Previous Code 20P4B MASS[Typ.] 1.0g
20
11
1
10
c
*1
e1
E
*2 D
NOTE) 1. DIMENSIONS "*1" AND "*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET.
A
A2
Reference Dimension in Millimeters Symbol
e SEATING PLANE
*3 b 3
bp
e1 D E A A1 A2 bp b3 c e L
Min Nom Max 7.32 7.62 7.92 18.8 19.0 19.2 6.15 6.3 6.45 4.5 0.51 3.3 0.38 0.48 0.58 0.9 1.0 1.3 0.22 0.27 0.34 0 15 1.528 1.778 2.028 3.0
JEITA Package Code P-SOP20-5.3x12.6-1.27
L
RENESAS Code PRSP0020DA-A
Previous Code 20P2N-A
MASS[Typ.] 0.3g
20 11
HE
*1
E
A1
F
1 Index mark
10
NOTE) 1. DIMENSIONS "*1" AND "*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET.
c
*2 D
A2
A1
Reference Dimension in Millimeters Symbol
*3 e bp y Detail F
D E A2 A1 A bp c HE e y L
Min Nom Max 12.5 12.6 12.7 5.2 5.3 5.4 1.8 0.1 0.2 0 2.1 0.35 0.4 0.5 0.18 0.2 0.25 0 8 7.5 7.8 8.1 1.12 1.27 1.42 0.1 0.4 0.6 0.8
A
REJ03F0208-0201 Rev.2.01 Mar 31, 2008 Page 13 of 13
L
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