| Part Number | LM4545VH | LM4545VHX | 
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | 
| Category | Interface - CODECs | Interface - CODECs | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Type | Audio, AC '97 | Audio, AC '97 | 
| Data Interface | Serial | Serial | 
| Resolution (Bits) | 18 b | 18 b | 
| Number of ADCs / DACs | 2 / 2 | 2 / 2 | 
| Sigma Delta | Yes | Yes | 
| S/N Ratio, ADCs / DACs (db) Typ | - | - | 
| Dynamic Range, ADCs / DACs (db) Typ | 90 / 89 | 90 / 89 | 
| Voltage - Supply, Analog | 4.2V ~ 5.5V | 4.2V ~ 5.5V | 
| Voltage - Supply, Digital | 3V ~ 5.5V | 3V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 48-LQFP | 48-LQFP | 
| Supplier Device Package | 48-TQFP (7x7) | 48-LQFP (7x7) |