DDX-2000/2060
All-Digital High Efficiency Power Amplifier
FEATURES • HIGH OUTPUT CAPABILITY 2x35W into 8 Ω @ <1% THD+N 1x70W into 4 Ω @ <1% THD+N • SINGLE SUPPLY (+9V to +30V) • HIGH EFFICIENCY, >88% www.DataSheet4U.com • DIGITAL VOLUME CONTROL, ANTICLIPPING AND AUTOMATIC MUTE • THERMAL OVERLOAD AND SHORT CIRCUIT PROTECTION BENEFITS • COMPLETE SURFACE MOUNT DESIGN • SMALL PACKAGE -NO HEAT SINK • POWER SUPPLY SAVINGS • ALL DIGITAL - NO DAC APPLICATIONS • DIGITAL POWERED SPEAKERS • PC SOUND CARDS • CAR AUDIO • SURROUND SOUND SYSTEMS • DIGITAL AUDIO COMPONENTS
GENERAL DESCRIPTION
The DDX-2000 Controller and DDX-2060 Power Device is an all-digital stereo amplifier chip set that can provide up to 35 watts per channel of audio power at very high efficiency. The DDX-2000 Controller includes two channels of DDX processing, digital volume control, mute and special processing to reduce distortion associated with signal clipping. The controller accepts standard PCM serial formats and operates from an external 256*Fs clock or from a crystal. The DDX-2060 Power Device is a dual channel Class-D H-Bridge power device that has a logic interface, integrated bridge driver, high efficiency MOSFET output transistors and protection circuitry. The benefits of this system are the all-digital design that eliminates the need for a digital to analog converter (DAC) and the high efficiency operation derived from the use of Apogee's patented damped ternary pulse width modulation (PWM). This approach provides an efficiency advantage over conventional Class-D designs and up to three times the efficiency of typical Class A/B amplifiers with music input signals.
V+
I2S Digital Audio PWM1 3 Volume 3 Mute Reset Power Down 2
LP Filter
DDX-2000 Controller
PWM2 2 +VL
DDX-2060 Power Device
LP Filter
Left
Right
Clock
129 Morgan Drive, Norwood MA 02062 1 voice: (781) 551-9450 fax: (781) 440-9528 email:
[email protected]
Copyright Apogee Technology, Inc 2000 (All Rights Reserved) November 2001 DOC #1000002-09
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Absolute Maximum Ratings [1]
DDX-2000 SYMBOL
VL Note [2] Tstg
DDX-2000/2060
PARAMETER
Power supply voltage Logic Inputs Storage temperature range
VALUE
-0.3V to +4.6V -0.3V to +6.0V -40 to +150
UNIT
V V °C
DDX-2060 SYMBOL
VCC VL Tj Tstg www.DataSheet4U.com
PARAMETER
Power supply voltage Input logic reference Operating junction temperature range Storage temperature range
VALUE
40V 5.5V -40 to +150 -40 to +150
UNIT
V V °C °C
Recommended Operating Conditions [3]
DDX-2000 SYMBOL
VL VIH VIL Fs TA Note 2
PARAMETER
Power supply voltage Logic inputs, High Logic inputs, Low PCM Input Sample Rate Ambient Temperature
MIN
2.0 32 0
TYP
3.3
MAX
5.5 0.8 48 70
UNIT
V V V KHz °C
DDX-2060 SYMBOL
VCC VL VIH VIL IOL TA
PARAMETER
Power supply voltage Input logic reference Logic inputs, High Logic inputs, Low Output Sink current, open-drain FAULT and TWARN Ambient Temperature
MIN
10.0 1.7
TYP
3.3
MAX
28.0
UNIT
V V V V mA °C
0.8 1 0 70
Thermal Data
DDX-2000 SYMBOL
θJA
PARAMETER
Thermal resistance junction-ambient
MIN
TYP
MAX
110
UNIT
°C/W
DDX-2060 SYMBOL
θJC Tj Th
PARAMETER
Thermal resistance junction-case (thermal pad) Thermal shut-down junction temperature Thermal shut-down hysteresis
MIN
TYP
150 25
MAX
2.5
UNIT
°C/W °C °C
1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. SCLK, SDATA, LRCLK, VMODE, VCLK/UP, VDATA/DN, SMODE, nRST, ACE, MUTE are 5V input tolerant. 3. Performance not guaranteed beyond recommended operating conditions.
2
Details are subject to change without notice.
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Electrical Characteristics[1]
DDX-2000/2060
Refer to circuit Fig. 5. VCC=28V, f=1kHz, TA=25C, RL=8 Ω, and measurement bandwidth 22kHz. SYMBOL PARAMETER CONDITION MIN TYP MAX UNIT
Po Output power Overvoltage Protection Threshold Undervoltage Protection Threshold VL supply current for DDX-2000 Vcc supply current in Powerdown Vcc quiescent current (Hi-Z State) Vcc supply current Short circuit current limit Total Harmonic Distortion+Noise Signal-to-Noise Ratio Efficiency Power Supply Rejection Ratio Po=1.0 Wrms Po= 30 Wrms A-weighted Po=2 x 20W Vrip= 1 Vrms, 120Hz, -60 db Input THD+N <1% 30 VL= +3.3V Hi-Z State 2-Chan. switching at 384KHz. 3.0 35 35 7 90 1 26 68 5.0 .08 .33 93 87 60 6.5 .18 .50 9 100 3 Wrms V V mA mA mA mA A % dB % dB
IL IPD IQ Icc Isc
www.DataSheet4U.com THD+N
SNR η PSRR
1. Characteristics are for the DDX-2060 power device driven by DDX-2000 processor.
3
Details are subject to change without notice.
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DDX-2000 Pin Function Description
Audio Serial Interface (I2S) Pin Name Pin No.
SCLK [1] SDATA [1] LRCLK [1, 2] SMODE [1, 2] 1 2 3 20
DDX-2000/2060
Description
Input serial clock Input serial data Input Left/Right Serial Mode Select (0=Left Justified, 1= I2S. See Figure 3)
Gain/Volume Interface Pin Name Pin No.
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Description
Volume Mod.