Apogee DDX-1050 Podręcznik - Strona 3

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1.4 Electrical Characteristics
measured using the DDX-8001/DDX-8229 processor family, V
SYMBOL
Total Harmonic Distortion + Noise,
THD+N
[Note 5]
Signal to Noise Ratio,
DDX
SNR
Signal to Noise Ratio, Binary Half-
Bridge Mode,
Peak Efficiency, DDX
η
Peak Efficiency,
Binary Half-Bridge Mode
Speaker Output Short-Circuit
I
SC
Protection Limit per Bridge
R
Power MOSFET output resistance
ds-on
g
Power Nchannel R
N
g
Power Pchannel R
P
I
Power Pchannel/Nchannel leakage
dss
UVL
Under-voltage Lockout Threshold
I
V
supply current, Power-down
PD
CC
I
V
supply current, Tri-state
CC-tri
CC
®
DDX
mode V
I
CC
Binary mode V
t
Turn-on delay time
on
t
Turn-off delay time
off
t
Rise time
r
t
Fall Time
f
Low logic input voltage:
PWRDN, TRISTATE pins
V
IL
Low logic input voltage:
INA, INB pins
High logic input voltage:
PWRDN, TRISTATE pins
V
IH
High logic input voltage:
INA, INB pins
Output Sink Current, FAULT,
I
fault
TWARN pins
P
Minimum output pulse width
Wmin
Note 5 – Performance Characteristics obtained using a DDX-8001/DDX-8229 controller.
1.5
Logic Truth Table
TRISTATE
InA
0
X
1
0
1
0
1
1
1
1
129 Morgan Drive, Norwood, MA 02062
CONTROLLED DOCUMENT: P_903-000044_Rev08 DDX-1080_60_50 Data Sheet.doc
(continued) [Refer to circuit in Figure 14] Unless otherwise specified, performance is
PARAMETER
®
Mode
[Note 5]
®
Mode
matching
ds-on
matching
ds-on
supply current
CC
supply current
CC
InB
OUTP
X
OFF
0
GND
1
GND
0
VCC
1
VCC
Specifications are subject to change without notice.
voice: (781) 551-9450
DDX-1080/DDX-1060/DDX-1050
=34V, V
=3.3V, fsw=384kHz, T
CC
L
CONDITION
Po = 1 Wrms
Po = 50 Wrms
A-Weighted
(relative to full scale)
Po = 1 x 65 W, 8Ω,
10% THD
Po = 2 x 32 W, 4Ω,
10% THD
DDX-1080
DDX-1060
DDX-1050
I
= 1A
d
I
= 1A
d
I
= 1A
d
V
= 35 V
CC
PWRDN = 0
TRISTATE = 0
1-Channel switching at
384kHz.
2-Channel switching at
384kHz.
Resistive load
Resistive load
Resistive load
Resistive load
V
= 2.7V
L
V
= 3.3V
L
V
= 5.0V
L
V
= 2.7V
L
V
= 3.3V
L
V
= 5.0V
L
V
= 2.7V
L
V
= 3.3V
L
V
= 5.0V
L
V
= 2.7V
L
V
= 3.3V
L
V
= 5.0V
L
Fault Active
No load
OUTN
OUTPUT MODE
OFF
GND
VCC
NEGATIVE
GND
VCC
fax: (781) 440-9528
=25°C, R
=8Ω.
C
L
MIN
TYP
MAX
0.06
0.08
98
92
90
88
4.5
6
8
4.0
6
8
3.5
6
8
200
270
95
95
50
7
9
1
3
22
49
53
100
100
25
25
0.7
0.8
0.85
1.05
1.35
2.2
1.5
1.7
1.85
1.65
1.95
2.8
1
70
150
Hi-Z
DAMPED
POSITIVE
Not Used
DRN: PRELIMINARY
UNIT
%
dB
%
A
mΩ
%
%
uA
V
mA
mA
mA
ns
ns
ns
ns
V
V
mA
ns
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