EK11 Cirrus Logic Inc, EK11 Datasheet - Page 4

• Manufacturer Part Number: EK11
• Description: KIT EVALUATION PA90 PA91 PA98
• Manufacturer: Cirrus Logic Inc
• Series: Apex Precision Power™r

Specifications of EK11

• Channels Per Ic: 1 - Single
• Amplifier Type: Power
• Output Type: Single-Ended
• Board Type: Bare (Unpopulated)
• Utilized Ic / Part: PA90, PA91, PA98
• Product: Amplifier Modules
• Description/function: Audio Amplifiers
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Current - Output / Channel: -
• Voltage - Supply, Single/dual (±): -
• -3db Bandwidth: -
• Slew Rate: -
• Current - Supply (main Ic): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1458; EK11

PA90
4
GENERAL
Please read Application Note 1 "General Operating Considerations" which covers stability, supplies, heat sinking,
mounting, current limit, SOA interpretation, and specification interpretation. Visit www.cirrus.com for design tools
that help automate tasks such as calculations for stability, internal power dissipation, current limit; heat sink selec-
tion; Apex Precision Power’s complete Application Notes library; Technical Seminar Workbook; and Evaluation Kits.
CURRENT LIMIT
For proper operation, the current limit resistor (R
gram. For optimum reliability the resistor value should be set as high as possible. The value is calculated as fol-
lows; with the maximum practical value of 32 ohms.
–10
700
500
300
200
100
.15
.05
EXT. COMPENSATION CAPACITOR, C
1K
50
40
30
20
10
70
50
40
30
20
10
.2
.1
8
0
100K
0
0
0.1
0
0
C
SMALL SIGNAL RESPONSE
C
C
C
CASE TEMPERATURE, T
C
C
C
C
= 68 pF
= 10 pF
= 4.7 pF
= OPEN
4
25
RESISTOR VALUE, R
CURRENT LIMIT
FREQUENCY, F (Hz)
8
50
SLEW RATE
1
R
1M
12
75
CL
16
=
100
10
.65
I
LIM
CL
20
C
125
(Ω)
(°C)
10M
24
150
100
C
(pF)
.001
225
270
5.5
4.5
3.5
.01
.1
100k
1
6
5
4
10
0
OUTPUT VOLTAGE SWING
R
V
A
P
P
P
HARMONIC DISTORTION
S
V
L
C
C
O
O
O
C
C
= 1KΩ
= 200V
= 63
OUTPUT CURRENT, I
C
C
C
C
= 17.6W
= 1W
= 5W
CL
= 68 pF
= 10 pF
= 4.7 pF
= OPEN
100
.05
FREQUENCY, F (Hz)
) must be connected as shown in the external connection dia-
FREQUENCY F (Hz)
P r o d u c t T e c h n o l o g y F r o m
1M
0.1
1K
PHASE COMPENSATION
*C
Use NPO ceramic (COG) type.
C
GAIN
To be rated for the full supply voltage +V
0.15
10K
≥10
≥30
≥1
≥5
O
(A)
10M
100K
0.2
NONE
4.7pF
68pF
10pF
C
C
*
400
300
200
100
1.1
1.0
20
15
10
80
70
60
50
7
5
3
2
10
25
10K
INPUT NOISE VOLTAGE
CASE TEMPERATURE, T
100Ω
100Ω
POWER RESPONSE
0Ω
0Ω
R
100
FREQUENCY, F (Hz)
50
FREQUENCY, F (Hz)
C
100K
1K
75
10K
100
1M
C
(°C)
S
to –V
PA90U
100K
125
S
.