DDX-2102 Datasheet, PDF (3/17 Pages) List of Unclassifed Manufacturers – All-Digital High Efficiency Power Amplifier

DDX-2102
1.4 Electrical Characteristics (continued) [Refer to circuit in Figure 19] Unless otherwise specified, performance
is measured using the DDX-8001/DDX-8229 processor family, V_CC =32V, VL=3.3V, fsw=384kHz, T_C=25°C, R_L=8Ω.
SYMBOL
PARAMETER
CONDITION
MIN TYP MAX
UNIT
THD+N
Total Harmonic Distortion + Noise, Po = 1 Wrms
[Note 5]
Po = 50 Wrms
0.09
0.13
%
SNR
Signal to Noise Ratio,
DDX^® Mode
Signal to Noise Ratio,
Binary Half-Bridge Mode, [Note 5]
A-Weighted relative to full-
scale
100
92
dB
η
Peak Efficiency, DDX^® Mode
Peak Efficiency,
Po=2 x 50 W, 10% THD,
8Ω
Po=4 x 25 W, 10% THD,
Binary Half-Bridge Mode
4Ω
90
87
%
I_SC
Speaker Output Short-Circuit
Protection Limit per Bridge [Note 6]
3.5
6
8
A
R_ds-on
Power MOSFET output resistance I_d=1A
200 270
mΩ
g_N
Power Nchannel R_ds-on matching
I_d = 1A
95
%
g_P
Power Pchannel R_ds-on matching
I_d = 1A
95
%
I_dss
Power Pchannel/Nchannel leakage V_CC = 35 V
50
uA
UVL
Under-voltage Lockout Threshold
7
9
V
I_PD
V_CC supply current, Power-down
PWRDN = 0
1
3
mA
I_CC-tri
V_CC supply current, Tri-state
TRISTATE = 0
22
mA
I_CC
DDX^® mode V_CC supply current
Binary mode V_CC supply current
2-Channel switching at
384kHz.
4-Channel switching at
384kHz.
86
mA
103
t_on
Turn-on delay time
Resistive load
100
ns
t_off
Turn-off delay time
Resistive load
100
ns
t_r
Rise time
Resistive load
25
ns
t_f
Fall Time
Resistive load
25
ns
V_IL
Low logic input voltage:
PWRDN, TRISTATE pins
Low logic input voltage:
INLA, INLB, INRA, INRB pins
V_L = 2.7V
V_L = 3.3V
V_L = 5.0V
V_L = 2.7V
V_L = 3.3V
V_L = 5.0V
0.7
0.8
0.85
1.05
1.35
2.2
V
V_IH
High logic input voltage:
PWRDN, TRISTATE pins
High logic input voltage:
INLA, INLB, INRA, INRB pins
V_L = 2.7V
V_L = 3.3V
V_L = 5.0V
V_L = 2.7V
V_L = 3.3V
V_L = 5.0V
1.5
1.7
1.85
1.65
V
1.95
2.8
I_fault
Output Sink Current, FAULT,
TWARN pins
Fault Active
1
mA
P_Wmin
Minimum output pulse width
No load
70
150
ns
Note 5 – Performance Characteristics obtained using a DDX-8001/DDX-8229 controller.
Note 6 – If used in single BTL (Mono Mode) configuration, the device may not be short-circuit protected.
Specifications are subject to change without notice.
129 Morgan Drive, Norwood, MA 02062
voice: [phone]
fax: [phone]
CONTROLLED DOCUMENT: P_903-000055_Rev08 DDX-2102 Data Sheet.doc
email: [e-mail]
DRN: PRELIMINARY Page 3 of 17