Pre-Production
WM8753L
Test Conditions
DCVDD = 1.5V, AVDD = HPVDD = DBVDD = SPKRVDD = PLLVDD = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 24-bit audio
data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Voice Digital to Analogue Converter (DAC) to Lineout (LOUT1/2, ROUT1/2, MONO1, MONO2,OUT3 with 10kΩ / 50pF
load), fs = 8kHz
Signal to Noise Ratio
(A-weighted)
SNR
A-weighted
TBD
10
82
dB
Input Resistance
LINE1/2 input to output
mixer, gain = +6dB
RLINE1/2
kΩ
RRXP
RRXN
THD
30
20
kΩ
kΩ
dB
Total Harmonic Distortion
(Note 6)
RL = 10 kΩ
full-scale signal
-74
Tone Control
Bass Boost
-6
-6
0
+9
+9
dB
dB
Bass Boost Step Size
Bass Filter Characteristic
Treble Boost
1.5dB
2nd order
0
dB
dB
Treble Boost Step Size
Treble Filter Characteristic
1.5dB
2nd order
Output Mixers (Left, Right and Mono mix)
PGA gain range into mixer
-15
dB+6
PGA gain step into mixer
3
dB
Analogue Outputs (L/ROUT1, L/ROUT2, MONO1)
0dB full scale output voltage
Programmable Gain range
AVDD/3.3
Vrms
dB
1kHz signal
monotonic
-73
+6
Programmable Gain step size
Mute Attenuation
1
dB
1kHz, full scale signal
85
90
dB
Channel Separation
dB
Headphone Output (LOUT1/2, OUT3)
Total Harmonic Distortion
THD
HPVDD=1.8V, RL=32Ω
0.013
-78
%
dB
Po = 5mW
HPVDD=1.8V, RL=16Ω
0.013
- 78
%
dB
Po = 5mW
HPVDD=3.3V, RL=32Ω
0.01
-80
%
dB
Po = 20mW
HPVDD=3.3V, RL=16Ω
0.01
-80
%
dB
Po = 20mW
Signal to Noise Ratio
(A-weighted)
SNR
THD
HPVDD = 3.3V
HPVDD = 1.8V
90
90
dB
dB
Speaker Output (L/ROUT2)
Total Harmonic Distortion
Po=180mW, RL=8Ω,
SPKRVDD=3.3V
-50
0.3
dB
%
Po=400mW, RL=8Ω,
SPKRVDD=3.3V
-40
1
dB
%
Signal to Noise Ratio
(A-weighted)
SNR
SPKRVDD=3.3V,
90
dB
RL=8Ω
SPKRVDD=2.5V,
90
dB
RL=8Ω
PP Rev 3.4 November 2005
8
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
