|
|
|
MAX97220A, MAX97220B, MAX97220C, MAX97220D
Differential Input DirectDrive Line Drivers/Headphone Amplifiers
Dual-Use Headphone Amplifiers and Line Drivers with Flexible Gains and Low Noise Performance
|
Status
Active: In Production.
Description
The MAX97220 is a differential input DirectDrive® line driver/headphone amplifier. This device is capable of driving line level loads with 3VRMS into 1kΩ with a 5V supply and 2VRMS into 600Ω loads from a 3.3V supply. A headphone load is capable of being driven with 125mW into 32Ω with a 5V supply. The IC is offered with an internally fixed 6dB gain or an externally set gain through external resistors. The external gain setting nodes can also be used to configure filters for set-top box applications. The IC has exceptional THD+N over the full audio bandwidth.
Two versions of the IC are available with different turn-on times (tON). The A and C versions for headphone applications feature a tON of 5.5ms while the B and D versions, intended for set-top-box applications, feature a 130ms tON. An on-chip charge pump inverts the power-supply input, creating a negative rail. The output stage of the amplifier is powered between the positive input supply and the output of the charge pump. The bipolar supplies bias the output about ground, eliminating the need for large, distortion-introducing output coupling capacitors. The IC powers on and off without clicks or pops.
The IC is available in a 3mm x 3mm x 0.8mm, 16-pin TQFN and is specified over the extended -40°C to +85°C temperature range.
|
|
Data Sheet
|
An evaluation kit is available: MAX97220AEVKIT
Key Features
- Output Power 125mW into 32Ω with a 5V Supply
- 3VRMS Output Drive into 1kΩ with a 5V Supply
- 2VRMS Output Drive into 600Ω with a 3.3V Supply
- Fully Differential Inputs
- Fixed or Externally Adjustable Gain with No Clicks or Pops
- Wide 2.5V to 5.5V Operating Range
- DirectDrive Outputs Eliminate DC-Blocking Capacitors
- Flat THD+N, Better Than 90dB in the Audio Band
- 18-Bit SNR Performance, 112dB
- Footprint Compatible with the MAX9722
|
|
Applications/Uses
- Blu-ray™ and DVD Players
- LCD Televisions
- Prosumer Audio Devices
- Set-Top Boxes
- Simple Multimedia Interfaces
|
|
|
|
Key Specifications:
| Headphone Amplifiers |
| Part Number |
Hdph. Amp. VCC
(V) |
Hdph. Amp. VCC
(V) |
Hdph. Amp. ICC
(mA) |
Hdph. Amp. POUT into 32Ω
(mW) |
Hdph. Amp. Half Pwr. THD+N
(%) |
SNR
(dB) |
PSRR
(dB) |
Hdph. Amp. Ext. Gain |
Package/Pins |
| min |
max |
typ |
@ 1% THD+N |
A- Weighted |
min |
| MAX97220 |
2.5 |
5.5 |
5 |
125 |
0.0035 |
102 |
90 |
Yes |
|
|
See All Headphone Amplifiers (18)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
Diagram
Simplified Block Diagrams
Product Guides
Reliability Reports
Software/Models
Ordering Information
|
Part Number
|
Free
Sample |
Buy |
Status
|
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
|
Temp |
RoHS/Lead-Free?
Materials Analysis
|
| MAX97220AETE+
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220AETE+T
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220BETE+
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220BETE+T
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220CETE+
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220CETE+T
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220DETE+
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX97220DETE+T
|
|
|
Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0031 (PDF)
Use pkgcode/variation: T1633+4*
|
-40°C to +85°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
|
Similar Products by Function
| MAX9722 |
5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown |
|
|
Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-5611
Rev 1;
2011-10-25
This page last modified: 2012-03-05
|
|
|
Download
E-Mail