WM8753 Datasheet, PDF (8/87 Pages) Wolfson Microelectronics plc – HI FI AND TELEPHONY DUAL CODEC

Advanced Information
WM8753L
Test Conditions
DCVDD = 1.5V, AVDD = HPVDD = DBVDD = SPKRVDD = PLLVDD = 3.3V, TA = +25^oC, 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
SNR
A-weighted
TBD
82
dB
(A-weighted)
Input Resistance
RLINE1/2
LINE1/2 input to output
10
kΩ
mixer, gain = +6dB
RRXP
30
kΩ
RRXN
20
kΩ
Total Harmonic Distortion
THD
RL = 10 kΩ
-74
dB
(Note 6)
full-scale signal
Tone Control
Bass Boost
-6
0
+9
dB
Bass Boost Step Size
1.5dB
dB
Bass Filter Characteristic
2nd order
Treble Boost
-6
0
+9
dB
Treble Boost Step Size
1.5dB
dB
Treble Filter Characteristic
2nd order
Output Mixers (Left, Right and Mono mix)
PGA gain range into mixer
-15
+6
dB
PGA gain step into mixer
3
dB
Analogue Outputs (L/ROUT1, L/ROUT2, MONO1)
0dB full scale output voltage
AVDD/3.3
Vrms
Programmable Gain range
1kHz signal
-73
+6
dB
Programmable Gain step size
monotonic
1
dB
Mute Attenuation
1kHz, full scale signal
85
dB
Channel Separation
90
dB
Headphone Output (LOUT1/2, OUT3)
Total Harmonic Distortion
THD
HPVDD=1.8V, RL=32Ω
Po = 5mW
0.013
%
-78
dB
HPVDD=1.8V, RL=16Ω
Po = 5mW
0.013
%
- 78
dB
HPVDD=3.3V, RL=32Ω
Po = 20mW
0.01
%
-80
dB
HPVDD=3.3V, RL=16Ω
Po = 20mW
0.01
%
-80
dB
Signal to Noise Ratio
SNR
HPVDD = 3.3V
90
dB
(A-weighted)
HPVDD = 1.8V
90
dB
Speaker Output (L/ROUT2)
Total Harmonic Distortion
THD
Po=180mW, RL=8Ω,
-50
dB
SPKRVDD=3.3V
0.3
%
Po=400mW, RL=8Ω,
-40
dB
SPKRVDD=3.3V
1
%
Signal to Noise Ratio
SNR
SPKRVDD=3.3V,
90
dB
(A-weighted)
RL=8Ω
SPKRVDD=2.5V,
90
dB
RL=8Ω
w
AI Rev 3.1 June 2004
8