Document
Preliminary
Elite MicroPower Inc.
EMA2217
2-W STEREO AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS
GENERAL DESCRIPTION
The EMA2217 is a stereo audio power amplifier in a 20-pin TSSOP thermally enhanced package
FEATURES
.Internal Gain control Which Eliminates External Gain-Setting Resistors .Fully Differential Configuration .Low Supply Current (6mA Typical) .De-pop Citcuitry
capable of driving 2W of continuous RMS power per channel into 4Ω loads. Internal gain control
minimizes the number of external components needed, simplifying the design, and freeing up board space for other features. Amplifier gain is internally configured and controlled by way of two terminals (G0 and G1). Gain settings of 6 dB, 10 dB, 15.6 dB, and 21.6 dB are provided. EMP products are Pb-free and RoHS compliant.
APPLICATIONS
.Notebook Computers, PDAs, and Other Portable Audio devices
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice, and customers are advised to obtain the latest version of relevant information prior to placing orders. DSA2217_V1.0 November 29 th 2007 Page 1 of 17 www.elitemicropower.com
Preliminary
Elite MicroPower Inc.
EMA2217
CONNECTION DIAGRAM
TSSOP-20
ORDER INFORMATION
EMA2217-50QE16GRR
50 QE16 G R
5.0V Operation TSSOP-20FD Package Lead-free Package; SnBi (Pb Free) Commercial Grade Temperature Rating: -40 to 85°C
R
Package in Tape & Reel
MARKING & PACKING INFORMATION
Package Type Product ID Package Marking EMP TSSOP-20 EMA2217-50QE16GRR EMA2217 DATE CODE 3K units Tape & Reel Transport Media
TERMINAL FUNCTIONS
TERMINAL NAME BYPASS G0 G1 GND LINN LINP LOUTN LOUTP NC PVDD NO. 10 2 3 1,11,13,20 5 9 8 4 12 6,15 I/O I I I I O O I DESCRIPTION Tap to voltage divider for internal midsupply bias generator Bit 0 of gain select Bit 1 of gain select Ground Left channel negative differential input Left channel positive differential input Left channel negative output Left channel positive output No connection Supply voltage terminal
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice, and customers are advised to obtain the latest version of relevant information prior to placing orders. DSA2217_V1.0 November 29 th 2007 Page 2 of 17 www.elitemicropower.com
Preliminary
Elite MicroPower Inc.
ROUTN ROUTP RINN RINP SDNB VDD 14 18 17 7 19 16 O O I I I I Right channel negative output Right channel positive output
Right channel negative differential input Right channel positive differential input Places IC in shutdown mode when held low Supply voltage terminal
EMA2217
FUNCTION BLOCK DIAGRAM
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice, and customers are advised to obtain the latest version of relevant information prior to placing orders. DSA2217_V1.0 November 29 th 2007 Page 3 of 17 www.elitemicropower.com
Preliminary
Elite MicroPower Inc.
EMA2217
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Storage Temperature Input Voltage Power Dissipation ESD Susceptibility Junction Temperature 6.0V -65°C to +150°C -0.3V to VDD +0.3V Internally Limited HBM 2kV, MM 200V 150°C Thermal Resistance θJA (TSSOP-20 FD) Operating Ratings Temperature Range Supply Voltage -40°C ≦ TA ≦ 85°C 2.5V ≦ VDD ≦ 5.5V 55°C/W
ELECTRICAL CHARACTERISTICS
Symbol IDD ISD IIH IIL VIH VIL ZI VOS Parameter Quiescent Power Supply Current Shutdown Current High-level Input Current Low-level Input Current High-level Input Voltage Low-level Input Voltage Input Impedance Output Offset Voltage
Apply for VDD = 5V, AV=6dB, RL = 8Ω and TA = 25°C (unless otherwise noted) Conditions VIN = 0V, no load VSDNB = 0.4V SDNB = 1.2V G0 = G1 = 5V SDNB = 0.4V G0 = G1 = 0V SDNB G0/G1 SDNB G0/G1 VIN = 0V, no load, measure differentially THD + N = 1 %, f = 1kHz RL = 3Ω RL = 4Ω RL = 8Ω THD + N = 10 %, f = 1kHz RL = 3Ω RL = 4Ω RL = 8Ω f = 1kHz RL = 3Ω, PO = 1.75W RL = 4Ω, PO = 1.5W RL = 8Ω, PO = 1W VRIPPLE = 200mVPP, sine wave, input ac-grounded f = 20 to 20kHz, VI = 1VPP, f = 20 to 20kHz EMA2217 Min Typ 6 0.1 10 0.1 3.3 0.1 1.2 5 0.4 0 20 25 5 30 25 Max 10 1.0 Units mA µA µA µA V V kΩ mV
PO
Output Power
2.3 2 1.32
W
2.9 2.45 1.6
THD+N
Total Harmonic Distortion + Noise
0.07 0.06 0.015
%
PSRR
Power Supply Rejection Ratio
-75
dB
CMRR
Common-mode Rejection Ratio
-62
dB
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice, and customers are advised to obtain the latest version of relevant information prior to placing orders. DSA2217_V1.0 November 29 th 2007 Page 4 of 17 www.elitemicropower.com
Preliminary
Elite MicroPower Inc.
Apply for VDD = 2.6V, AV=6dB, RL = 8Ω and TA = 25°C (unless otherwise noted) Symbol IDD ISD IIH IIL VIH VIL ZI VOS Parameter Quiescent Power Supply Current Shutdown Current High-level Input Current Low-level Input Current High-level Input Voltage Low-level Input Voltage Inpu.