TS4855 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TS4855 Datasheet PDF : 27 Pages
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TS4855
Electrical Characteristics
Table 5: Electrical characteristics at VCC = +3.0 V, GND = 0 V, Tamb = 25°C
(unless otherwise specified)
Symbol
Parameter
Min. Typ. Max. Unit
Po
Output Power
SPKRout, RL = 8Ω, THD = 1%, f = 1 kHz
Rout & Lout, RL = 32Ω, THD = 0.5%, f = 1 kHz
mW
300 340
20 25
THD + N Total Harmonic Distortion + Noise
Rout & Lout, Po = 20 mW, f = 1 kHz, RL = 32Ω
SPKRout, Po = 300 mW, f = 1 kHz, RL = 8Ω
Rout & Lout, Po = 15 mW, 20 Hz < f < 20 kHz, RL = 32Ω
SPKRout, Po = 250 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
SPKRout,Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω
Gain (BTL) = 12 dB, Output Mode 1,3,5,7
58 62.5
Rout & Lout Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω
Maximum gain setting, Output Mode 2,3
52
56.5
Rout & Lout Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω
Maximum gain setting, Output Mode 4,5
49
55
Rout & Lout Vripple = 200 mV Vpp, F = 217 Hz, Input Terminated 50Ω 45
Maximum gain setting, Output Mode 6,7
49.5
G2
Digital Gain Range - Rin & Lin to Rout ,Lout
-34.5
12 dB
G1
Digital Gain Range - Phone In HS to Rout ,Lout
-40.5
6 dB
Digital Gain stepsize
1.5
dB
Stepsize Error
± 0.6
dB
Phone In Volume
BTL maximum GAIN from Phone In HS to Rout, Lout
BTL minimum GAIN from Phone In HS to Rout, Lout
dB
5.4 6 6.6
-41.1 -40.5 -39.9
Phone In Volume
BTL maximum gain from Rin, Lin to Rout, Lout
BTL minimum gain from Rin, Lin to Rout, Lout
dB
11.4 12 12.6
-35.1 -34.5 -33.9
Phone In Volume
BTL gain from Phone In IHF to SPKRout
dB
11.4 12 12.6
Zin
Phone In IHF Input Impedance, all gains setting
16 20 24 kΩ
Zin
Phone In HS, Rin & Lin Input Impedance, all gains setting
42.5 50 57.5 kΩ
tes
Enable Step up Time - ENB
20
ns
teh
Enable Hold Time - ENB
20
ns
tel
Enable Low Time - ENB
30
ns
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