"TI-PGA2310.pdf: 世界领先技术的多路复用串行控制音频芯片"
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The document "TI-PGA2310.pdf" provides extensive information about the PGA2310, a programmable gain amplifier designed by Texas Instruments. This amplifier offers a wide range of features and functionalities, making it suitable for various audio applications.
The PGA2310 is equipped with a serial control port that allows users to conveniently adjust the gain settings and configure the amplifier to meet their specific requirements. This level of control and flexibility makes the PGA2310 an ideal choice for audio systems that demand precision and customization.
Furthermore, the PGA2310 includes a multiplexer (MUX) that enables seamless integration with other audio components. This MUX facilitates the smooth transmission of digital and analog signals, ensuring optimal connectivity and signal flow within the audio system.
The PGA2310 also features zero-crossing detection (ZC), which helps minimize unwanted noise and distortion during signal transitions. This ensures that the output signals remain clean and accurate, preserving the original audio quality.
Additionally, the PGA2310 offers built-in protection mechanisms such as overcurrent detection (OCD) and thermal shutdown (SD) to safeguard the amplifier and connected audio devices from potential damage due to excessive heat or electrical faults.
The document "TI-PGA2310.pdf" provides comprehensive details about the pin configurations, operating characteristics, and recommended application circuits for the PGA2310. This information serves as a valuable resource for engineers and designers looking to incorporate the PGA2310 into their audio systems.
Overall, the PGA2310 is a versatile and high-performance programmable gain amplifier that delivers exceptional audio quality, precise control, and reliable protection mechanisms. Its advanced features and robust design make it a preferred choice for demanding audio applications across various industries.
PGA2310
www.ti.com
SBOS207C –OCTOBER 2001–REVISED DECEMBER 2015
6.5 Electrical Characteristics
At T
A
= 25°C, V
A
+ = 15 V, V
A
− = −15 V, V
D
+ = 5 V, R
L
= 100 kΩ, C
L
= 20 pF, BW measure = 10 Hz to 20 kHz, unless
otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DC CHARACTERISTICS
Step Size 0.5 dB
Gain Error Gain Setting = 31.5 dB ±0.05 dB
Gain Matching ±0.05 dB
Input Resistance 10 kΩ
Input Capacitance 7 pF
AC CHARACTERISTICS
THD+N V
IN
= 10 V
PP
, f = 1 kHz 0.0004% 0.001%
Dynamic Range V
IN
= AGND, Gain = 0 dB 116 120 dB
Voltage Range, Input and Output (VA−) + 1.5 (VA−) − 1.5 V
Output Noise V
IN
= AGND, Gain = 0 dB 9.5 13.5 μV
RMS
Interchannel Crosstalk f = 1 kHz –126 dBFS
OUTPUT BUFFER
Offset Voltage V
IN
= AGND, Gain = 0 dB 0.5 3 mV
Load Capacitance Stability 1000 pF
Short-Circuit Current 35 mA
Unity-Gain Bandwidth, Small Signal 1.5 MHz
DIGITAL CHARACTERISTICS
High-Level Input Voltage, V
IH
2 V
D
+ V
Low-Level Input Voltage, V
IL
–0.3 0.8 V
High-Level Output Voltage, V
OH
I
O
= 200 μA (V
D
+) − 1 V
Low-Level Output Voltage, V
OL
I
O
= –3.2 mA 0.4 V
Input Leakage Current 1 10 µA
SWITCHING CHARACTERISTICS
t
SCLK
Serial Clock (SCLK) Frequency 0 6.25 MHz
t
PL
Serial Clock (SCLK) Pulse Width Low 80 ns
t
PH
Serial Clock (SCLK) Pulse Width High 80 ns
t
MI
MUTE Pulse Width Low 2 ms
INPUT TIMING
t
SDS
SDI Setup Time 20 ns
t
SDH
SDI Hold Time 20 ns
t
CSCR
CS Falling to SCLK Rising 90 ns
t
CFCS
SCLK Falling to CS Rising 35 ns
OUTPUT TIMING
t
CSO
CS Low to SDO Active 35 ns
t
CFDO
SCLK Falling to SDO Data Valid 60 ns
t
CSZ
CS High to SDO High Impedance 100 ns
POWER SUPPLY
V
A
+ 4.5 15 15.5
Operating Voltage V
A
– –4.5 –15 –15.5 V
V
D
+ 4.5 5 5.5
I
A
+ V
A
+ = 15 V 7.5 10
Quiescent Current I
A
– V
A
– = –15 V 7.7 10 mA
I
D
+ V
D
+ = 5 V 0.8 1.5
Copyright © 2001–2015, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Links: PGA2310
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