NJM2153

SOUND ENHANCEMENT AUDIO PROCESSOR

■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE

The NJM2153 is a sound enhancement audio processor for
professional audio equipments. It regenerates high definitive and
nearly real sound.
The internal VCA (voltage controlled amplifier) suppresses the
boost gain in high band to reduce noise when faint signals are
inputted.
The NJM2153 is suitable for mixer and effecter for musical
NJM2153M
instruments, and high-end audio equipment requiring low distortion
and wide dynamic range.

■ FEATURES
● Operating Voltage (±9 to ±18V)
● Low Operating Current (5.2mA typ.)
● Low Output Noise (20µVrms typ. at BBE ON)
● Low Distortion (0.02% typ. at BBE ON)
● Internal BBE ON/OFF Switch
● Bipolar Technology
● Package Outline DMP20

■ BLOCK DIAGRAM

OUT
IN
VCA

DETECT
PEAK

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NJM2153

■ ABSOLUTE MAXIMUM RATING (Ta=25°C)

PARAMETER SYMBOL RATING UNIT
+ -
Supply Voltage V /V ±20 V
Power Dissipation PD 350 mW
Operating Temperature Range Topr -40 to +85 °C
Storage Temperature Range Tstg -40 to +125 °C

+ -
■ ELECTRICAL CHARACTERISTICS (V /V =±15.0V,Ta=25°C,Vin=-12dBV/1kHz,Rg=600Ω,RL=100kΩ)

PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT

BBE
+ --
Operating Voltage V /V
±9.0 - ±18.0 V

Supply Current Icc

No Signal ON - 5.2 8.0 mA

Low Voltage Gain GVLF

f=50Hz ON 10.0 12.0 14.0 dB

Mid Voltage Gain GVMF

f=700Hz ON -2.3 -0.3 0.7 dB

High Voltage Gain 1 GVHF1

f=10kHz,Vin=0dBV ON 10.5 12.0 13.5 dB

High Voltage Gain 2 GVHF2

f=10kHz,Vin=-35dBV ON 7.2 9.2 11.2 dB

High Voltage Gain 3 GVHF3

f=10kHz,Vin=-50dBV ON -2.0 0.0 2.0 dB

Attack Time TATC

f=20kHz, -∞ → 0dBV ON - 100 - µS

Recovery Time TRCV

f=10kHz,0dBV → -50dBV ON - 500 - mS

Maximum VIM 5.0 6.5 dBV

Input Voltage THD=1% ON -
(1.78) (2.11) (Vrms)
Maximum VOM 17.0 18.5 dBV
Output Voltage THD=1% ON - (Vrms)
(7.08) (8.41)
Output Noise 1 VNO1 -100 -90 dBV
Rg=0Ω,DIN AUDIO OFF - (µVrms)
(10) (31.6)
Output Noise 2 VNO2 -94 -84 dBV
Rg=0Ω,DIN AUDIO ON -
(20) (63.1) (µVrms)
Total Harmonic THD1
Distortion 1 400Hz to 30kHzBPF OFF - 0.01 0.05 %

Total Harmonic THD2

Distortion 2 400Hz to 30kHzBPF ON - 0.02 0.1 %

SW Control Voltage Vth

Threshold ON -2.0 0 2.0 V

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 NJM2153

■ MODE SWITCH

MODE SW
BYPASS L
BBE H

■ PIN CONFIGURATION

Low-Out
Mid-Out

Low-In
Mid-In

Det-In
Addin

Gain
Out
FF

IN
20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10
High-In

High-Out

GND
Vee

Vcc

SW
Det

NC
FB

Int

■ PIN FUNCTION

No. SYMBOL FUNCTION No. SYMBOL FUNCTION

1 High-In High Band Input 11 Det-In Detector Input
2 FB Feedback 12 Gain Gain
3 High-Out High Band Output 13 IN Input
4 Int Integral 14 Low-In Low Band Input
5 Vee Negative Power Supply 15 Low-Ont Low Band Output
6 Vcc Positive Power Supply 16 Mid-In Mid Band Input
7 Det Detector 17 Mid-Out Mid Band Output
8 SW BBE ON/OFF Switch 18 Out Output
9 NC - 19 FF Feed forward
10 GND Ground 20 Addin Add In

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NJM2153

■ APPLICATION CIRCUIT

OUTPUT INPUT

21.5k R10

C6
33n
0.47u C5
C8 100p R13
* R9
RVR2* 18.2k R7 21.5k
13.3k R12 10k R11 21.5k 3.3n 21.5k
R15 21.5k
R8
RVR1* 39.2k C7
* R6

13.3k 20 19 18 17 16 15 14 13 12 11
R14

+ + +
+
R4
21.5k

R3
21.5k

+
+

1 R1 2 R2 3 4 5 6 7 8 9 10
21.5k 21.5k

0.47u R5 C9
2.2u C1 2.2u
0.47u 100k R16
3.32k

220n C4 C10 2.2u

C2 C3 BBE BY PASS

-V +V

-V
* RVR1:BBE PROCESS 50kΩVR
RVR2:LO CONTOUR 50kΩVR
13.3kΩ=+12dB Boost

PART No. VALUE Tolerance PART No. VALUE Tolerance

C1,C9,C10 2.2µF ±20% R1,R2,R3,R4,R6,R7,R8
C2,C3,C5 0.47µF ±5% R9,R10 21.5kΩ ±1%
C4 220nF ±5% R5 3.32kΩ ±1%
C6 33nF ±5% R11 39.2kΩ ±1%
C7 3.3nF ±5% R12 10kΩ ±1%
C8 100pF ±5% R13 18.2kΩ ±1%
R14,R15 13.3kΩ ±1%
R16 100kΩ ±1%

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 NJM2153

■ TYPICAL CHARACTERISTICS

Frequency Response
20
Vin=0dBV
10

0
-20dBV
-10
Response [dB]

-20

-30
-40dBV

-40

-50

-60
100 1000 10000
Frequency [Hz]

VCA Gain
f=10kHz
14

12

10

8
Gain [dB]

-2
0 -10 -20 -30 -40 -50 -60
Input[dBV]

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NJM2153

■ NOTE
The NJM2153 is manufactured by New Japan Radio Co.,Ltd under license from BBE Sound Inc.
BBE is a registered trademark of BBE Sound Inc.
A license from BBE Sound Inc. is required before the NJM2153 can be purchased from New Japan Radio
Co.,Ltd.

BBE Sound, Inc.

5381 Production Drive
Huntington Beach, CA 92649
Tel:(714)897-6766
Fax:(714)896-0736

[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.

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