tfa9879hn NXP Semiconductors, tfa9879hn Datasheet - Page 39

• Manufacturer Part Number: tfa9879hn
• Description: Mono Btl Class-d Audio Amplifier For Portable Applications With Digital Input
• Manufacturer: NXP Semiconductors

NXP Semiconductors
14. Characteristics
Table 37.
All parameters are guaranteed for V
T
[1]
TFA9879_1
Preliminary data sheet
Symbol
V
V
I
I
Series resistance output power switches
R
Amplifier output pins; OUTA and OUTB
V
Regulator, pin STABA
V
LRCK1, SCK1, SDI1, LRCK2, SCK2, SDI2, SDA, SCL, ADSEL1 and ADSEL2
V
V
C
V
Protection
T
I
f
f
P
DDD
O(ocp)
OFP
UFP
amb
act(th_prot)
DDP
DDD
O(offset)
O(reg)
IH
IL
OL
DSon
i
After switching from Off/Amplifier mode to Power-down mode.
= 25

C unless otherwise specified.
DC characteristics
Parameter
power supply voltage
digital supply voltage
supply current
digital supply current
drain-source on-state resistance
output offset voltage
regulator output voltage
HIGH-level input voltage
LOW-level input voltage
input capacitance
LOW-level output voltage
thermal protection activation
temperature
overcurrent protection output current
overfrequency protection frequency
underfrequency protection frequency
14.1 DC Characteristics
DDD
= 1.8 V; V
All information provided in this document is subject to legal disclaimers.
DDP
Rev. 01 — 8 April 2010
Conditions
on pin V
on pin V
on pin V
load; soft mute on
on pin V
on pin V
on pin V
lower switch (NMOS)
upper switch (PMOS)
STABA to GNDP
at I
at PWM output frequency
at PWM output frequency
= 3.7 V; R
OL
= 2.6 mA
DDP
DDP
DDD
DDP
DDD
DDD
Mono BTL class-D audio amplifier with digital input
L
; Amplifier mode with
; Power-down mode
; Amplifier mode
; Power-down mode
= 8

; L
L
= 44

H; f
i
= 1 kHz; f
[1]
Min
2.5
1.65
-
-
-
-
-
15
1.65
-
-
130
1.3
-
96
-
0.7V
-
DDD
s
= 48 kHz; clip control off;
-
175
Typ Max
-
1.8
5.7
-
1.2
5
190
260
0
-
-
-
-
-
-
710
TFA9879
© NXP B.V. 2010. All rights reserved.
1.95
2.3
-
5.5
-
20
-
15
-
-
+15
1.95
-
0.3V
3
400
-
1031
DDD
39 of 60
Unit
V
V
mA
A
mA
A
m
m
mV
V
V
V
pF
mV
C
A
kHz
kHz