Philips AN1651 manual NE5234 Closed Loop Gain vs Frequency

Page 4

Philips Semiconductors

Application note

 

 

 

Using the NE/SA5234 amplifier

AN1651

 

 

 

VCC

 

D2

 

 

 

 

 

 

R82

R85

R76

 

 

 

 

 

IB2

IB5

IB6

Q83

Q85

 

Q81

 

 

IB4

 

 

 

 

 

 

 

IB8

 

 

 

 

±

 

 

Q82

 

 

 

 

 

 

 

 

 

I2

Q53,54

 

Q84

 

 

 

 

Q51,52

 

C5

 

 

 

 

 

 

 

 

 

C3

 

 

 

 

 

 

 

 

 

INPUT

 

 

 

 

 

OUTPUT

 

 

C4

 

 

 

 

 

 

 

 

 

 

 

 

Q72

C6

 

 

 

 

 

 

 

 

+

C2

 

 

 

 

 

I1

 

 

Q78

 

 

Q71

 

Q61

Q62

 

Q75

 

 

 

 

 

 

 

 

 

 

 

VB4

 

 

D3

 

 

 

 

 

 

 

 

 

C1

CLASS

 

 

 

 

 

IB3

AB

 

 

 

 

 

CONTROL

IB9

R86

R75

 

 

IB7

 

 

VEE

 

 

 

 

 

 

 

 

 

 

 

INTERMEDIATE STAGE

CURRENT CONTROL

CLASS AB OUTPUT

SL00632

 

 

 

Figure 4.

 

100

 

 

 

 

 

 

80

 

 

 

 

 

dB

60

 

 

 

 

 

 

 

 

 

 

 

G1000

 

 

 

 

 

 

40

 

 

 

 

 

 

20

 

 

 

 

 

 

0

 

 

 

 

 

 

10Hz

100Hz

1kHz

10kHz

100kHz

1MHz

 

 

 

 

FREQUENCY

 

10  106

 

 

 

 

 

 

SL00633

Figure 5. NE5234 Closed Loop Gain vs Frequency

1991 Oct

4

Image 4
Contents AN1651 II. Detailed Description SummaryInput Stage Intermediate Amplifier and Output Stage Figure III. CharacteristicsInternal Frequency Compensation NE5234 Closed Loop Gain vs Frequency IV. Noise Referred to the Input Guide Lines for Minimizing NoiseVI. Multiple Stage Considerations Amplified Noise = 160μVRMSVII. LOW Harmonic Distortion THD vs Supply Voltage for 1VRMS OutputIX. LOOP-GAIN VIII. GAIN-BANDWIDTH VS Closed Loop FRE- Quency ResponseSlew Rate Response Single Supply Operation XI. ProceduresNon-Inverting Stage Biasing Strain Gauge Amplifier Instrumentation Applications ExamplesTo 20mA Current Loop Active filters Communications and AudioActive Filters Fiber Optic Receiver for Low Frequency Data Figure References NE578NE570/571/SA571 System Level Half Bridge Servo

AN1651 specifications

The Philips AN1651 is a highly regarded car audio speaker offering an impressive balance of sound quality and performance. Designed primarily for the car audio enthusiast, this model showcases what modern engineering can achieve in automotive sound systems.

One of the main features of the AN1651 is its dual cone structure that produces clear and rich sound across various frequencies. This design aims to enhance both low and mid-range sounds, ensuring that music is delivered with clarity and precision. Whether you're listening to rock, pop, or classical, the AN1651 is built to convey the nuances of music effectively.

The speaker boasts a peak power handling capability of up to 240 watts, which allows for immersive sound experiences without distortion, even at higher volumes. This capability means that the AN1651 can handle the punchy bass lines typical in many contemporary music genres, making it a popular choice among bass enthusiasts.

Philips also incorporates their innovative technologies, such as a reinforced polypropylene cone. This material enhances sound quality by providing better rigidity while remaining lightweight. The result is a responsive speaker with reduced resonance, contributing to more accurate audio playback. Furthermore, the butyl rubber surround is designed to withstand wear and tear, ensuring durability and longevity in automotive conditions.

The AN1651 also features a sensitivity rating of 91 dB, allowing it to produce powerful sound output even with moderate power input. This feature makes it an ideal choice for vehicles with smaller amplifiers or factory stereo units, as it ensures an enjoyable listening experience without requiring significant upgrades.

In terms of installation, the AN1651 is designed for versatility. Its size makes it compatible with a wide range of vehicles, and the mounting accessories included facilitate an easy and secure fit.

With a smart aesthetic that blends well with various car interiors, the Philips AN1651 speaker is more than just a functional audio component; it is a stylish addition to your vehicle.

In conclusion, the Philips AN1651 combines advanced technologies and thoughtful design to deliver a rich audio experience that car enthusiasts will appreciate. Whether for casual listening or serious audio enjoyment, this speaker meets diverse audio needs, proving to be a valuable investment for any car audio system.