TS4855_04 Datasheet, PDF (6/27 Pages) STMicroelectronics – LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL

TS4855
Electrical Characteristics
5 ELECTRICAL CHARACTERISTICS
Table 4: Electrical characteristics at VCC = +5.0 V, GND = 0 V, Tamb = 25°C
(unless otherwise specified)
Symbol
Parameter
Min. Typ. Max. Unit
I_CC
Supply Current, all gain @ max settings
Output Mode 1, Vin = 0 V, no load
Output Mode 1, Vin = 0 V, loaded (8Ω)
Output Mode 2,3,4,5,6,7 Vin = 0 V, no loads
Output mode 2,3,4,5,6,7 Vin = 0 V, loaded (8Ω, 32Ω)
mA
4.0 8
5.5 9
8.0 11
10 12
I_STANDBY Standby Current
Output Mode 0
µA
0.75 2
Voo
Output Offset Voltage (differential)
Output Mode 1 to 7, Vin = 0 V, no load, Speaker Out
Output Mode 2 to 7 Vin = 0 V, no loads, Headset Out
mV
5
20
5
40
Vil
“Logic low” input Voltage
0
0.4 V
Vih
“Logic high” input Voltage
1.4
5
V
Po
Output Power
SPKR_out, RL = 8Ω, THD+N = 1%, f = 1 kHz
R_out & L_out, RL = 32Ω, THD+N = 0.5%, f = 1 kHz
mW
800 1100
70 100
THD + N Total Harmonic Distortion + Noise
R_out & L_out, Po = 70 mW, f = 1 kHz, RL = 32Ω
SPKR_out, Po = 800 mW, f = 1 kHz, RL = 8Ω
R_out & L_out, Po = 50 mW, 20 Hz < f < 20 kHz, RL = 32Ω
SPKR_out, Po = 400 mW, 20 Hz < f < 20 kHz, RL = 8Ω
%
0.5
1
0.5
0.5
SNR
Signal To Noise Ratio
A-Weighted, f = 1 kHz
80
dB
PSRR^{5) Power Supply Rejection Ratio}
dB
SPKR_out;Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω
Gain (BTL) = 12 dB, Output mode 1,3,5,7
58 62
R_out& L_out;Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω
Maximum gain setting, Output mode 2,3
52 61
R_out& L_out;Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω
Maximum gain setting, Output mode 4,5
50
58
R_out& L_out;Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω ₄₆
53
Maximum gain setting, Output mode 6,7
G2
Digital Gain Range (Rin & Lin) to R_out, L_out
-34.5
12 dB
G1
Digital Gain Range (Phone In HS) to R_out, L_out
-40.5
6 dB
Digital Gain Stepsize
1.5
dB
Stepsize Error
± 0.6
dB
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