Series: -
Number of ADCs / DACs: 2 / 2
Sigma Delta: Yes
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
S/N Ratio, ADCs / DACs (db) Typ: -
Data Interface: Serial
Package / Case: 48-LQFP
Supplier Device Package: 48-LQFP (7x7)
Voltage - Supply, Digital: 3 V ~ 5.5 V
Packaging: Tape & Reel (TR)
Type: Audio Codec '97
Manufacturer: National Semiconductor
Resolution (Bits): 18 b
Dynamic Range, ADCs / DACs (db) Typ: 90 / 89
Voltage - Supply, Analog: 4.2 V ~ 5.5 V
DescriptionThe LM4540VHX is one member of the LM4540 family which is designed as the audio codec that can be used in PC audio systems requiring only 2 stereo inputs (CD, Line) and 3 mono inputs (Mic, Phone, PC Beep). The key specifications of this device are: (1)A/D dynamic range: 90dB (typ);(2)analog mixer dynamic range: 95dB (typ);(3)D/A dynamic range: 89dB (typ). Also it features AC-Link, a synchronous, fixed rate serial bus for connection to the digital AC '97 controller. Features of the LM4540VHX are:(1)audio codec '97 compliant; (2)stereo 18-Bit SD A/D's and D/A's with 128X oversampling; (3)national's 3D sound circuitry; (4)power management support; (5)digital Interface 3V and 5V compliant.
The absolute maximum ratings of the LM4540VHX can be summarized as:(1)supply voltage: 6.0V;(2)storage temperature: -65°C to +150°C;(3)input voltage: -0.3V to VDD+0.3V;(4)ESD susceptibility:2500 V;(5)junction temperature:150°C. If you want to know more information such as the electrical characteristics about the LM4540VHX, please download the datasheet in www.seekic.com or www.chinaicmart.com .
Parameters: | Technical/Catalog Information | LM4540VHX |
| Vendor | National Semiconductor |
| Category | Integrated Circuits (ICs) |
| Type | Audio Codec '97 |
| Number of ADCs / DACs | 2 / 2 |
| Dynamic Range, ADCs / DACs (db) Typ | 90 / 89 |
| S/N Ratio, ADCs / DACs (db) Typ | - |
| Resolution (Bits) | 18 b |
| Voltage - Supply, Analog | 4.2 V ~ 5.5 V |
| Voltage - Supply, Digital | 3.0V ~ 5.5V |
| Mounting Type | Surface Mount |
| Package / Case | 48-TQFP |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40°C ~ 85°C |
| Sigma Delta | Yes |
| Interface | Serial |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | LM4540VHX
LM4540VHX
|
LM4540VHX Data Sheet
