TS4994IQT STMicroelectronics, TS4994IQT Datasheet - Page 26

• Manufacturer Part Number: TS4994IQT
• Description: IC AMP AUDIO PWR 1W MONO 10DFN
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4994IQT

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, Differential Inputs, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: 10-DFN
• For Use With: 497-6396 - BOARD EVAL FOR LV TS4984IQT497-6395 - BOARD EVAL FOR LP DIFF TS4994IQT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Application information
4.7
26/35
Figure 75. CMR vs. frequency (worst case
Figure 77. CMR vs. frequency with random
-10
-20
-30
-40
-50
-60
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0
20
20
Vcc = 5V
Vic = 200mVpp
Av = 1, Cin = 470 μ F
Δ R/R = 0.1%, RL ≥ 8 Ω
Tamb = 25 ° C
Vcc = 5V
Vic = 200mVpp
Av = 1, Cin = 470 μ F
Δ R/R ≤ 0.1%, RL ≥ 8 Ω
Tamb = 25 ° C
Figure 77
random selection of four
Power dissipation and efficiency
Assumptions:
●
●
The output voltage is:
and
conditions)
choice condition
100
100
Load voltage and current are sinusoidal (V
Supply voltage is a pure DC source (V
and
Frequency (Hz)
Frequency (Hz)
Cb=1 μ F
Cb=0
Cb=1 μ F
Cb=0
Figure 78
1000
1000
show CMRR versus frequency for a typical application with a
Δ
R/R values with a 0.1% tolerance.
10000
10000
20k
20k
V
out
I
Figure 76. CMR vs. frequency (worst case
Figure 78. CMR vs. frequency with random
out
= V peak sinωt (V)
CC
=
-10
-20
-30
-40
-50
-60
-10
-20
-30
-40
-50
-60
-70
-80
-90
V
------------ - (A)
)
0
0
R
20
20
out
out
L
Vcc = 2.5V
Vic = 200mVpp
Av = 1, Cin = 470 μ F
Δ R/R = 0.1%, RL ≥ 8 Ω
Tamb = 25 ° C
Vcc = 2.5V
Vic = 200mVpp
Av = 1, Cin = 470 μ F
Δ R/R ≤ 0.1%, RL ≥ 8 Ω
Tamb = 25 ° C
and I
conditions)
choice condition
100
100
out
)
Frequency (Hz)
Frequency (Hz)
Cb=1 μ F
Cb=0
Cb=1 μ F
Cb=0
1000
1000
10000
10000
TS4994
20k
20k