DRV604 Datasheet, PDF (5/21 Pages) Texas Instruments – DirectPath™ 2Vrms Line Driver and HP Amp With Adjustable Gain

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DRV604
SLOS659 – JANUARY 2010
ELECTRICAL CHARACTERISTICS
PVDD_LD = PVDD_HP = 3.3 V, R_LD = 5 kΩ, R_HP = 32 Ω, R_FB = 20 kΩ, R_IN = 10 kΩ, T_A = 25°C, Charge pump: C_{CP_LD} =
C_{CP_HP} = 1.0 µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
DRV604
UNIT
MIN TYP MAX
|V_os|
PSRR
Output offset voltage
Power supply rejection ratio
PVDD = 3.3 V
70
80
1 mV
dB
V_OH
V_OL
V_{uvp_on}
V_{uvp_hysteresis}
High level output voltage
Low level output voltage
PVDD, undervoltage detection
PVDD, undervoltage detection,
hysteresis
PVDD = 3.3 V
PVDD = 3.3 V
Internal under-voltage detection.
3.1
V
–3.05 V
2.8 V
200
mV
V_uvp
External undervoltage detection
I_Hys
External undervoltage detection
hysteresis current
1.25
V
5
µA
F_cp
Charge pump switching frequency
260
700 kHz
|I_IH|
High level input current
PVDD = 3.3 V, V_IH = PVDD, EN_HP, EN_LD
1 µA
|I_IL|
low level input current
PVDD = 3.3 V, V_IL = 0 V, EN_HP, EN_LD
1 µA
Supply current, no load
PVDD, EN_LD, EN_HP = 3.3 V
15
25
35
I_(PVDD)
Supply current, line driver, no load PVDD, EN_LD = 3.3 V, EN_HP = GND
Supply current, headphone, no load PVDD, EN_LD = GND, EN_HP = 3.3 V
12
13
mA
Supply current, disabled
PVDD = 3.3 V, EN_LD, EN_HP = GND,
Ex_UVP = GND
2.5
5
T_sd
Thermal shutdown
Thermal shutdown hysteresis
150
°C
15
°C
ELECTRICAL CHARACTERISTICS, LINE DRIVER
PVDD_LD = PVDD_HP = 3.3 V, R_load = 5 kΩ, R_FB = 20 kΩ, R_IN = 10 kΩ, T_A = 25°C, Charge pump: C_{CP_LD} = C_{CP_HP} = 1.0 µF
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
DRV604
UNIT
MIN
TYP MAX
V_O
THD+N
SNR
Output voltage, outputs in phase
Total harmonic distortion plus noise
Signal-to-noise ratio
1% THD+N, f = 1 kHz, 10 kΩ load
f = 1 kHz, 10 kΩ load, V_O = 2 Vrms
A-weighted, AES17 filter, 2 Vrms ref
2.1
0.001%
109
Vrms
dB
DNR
Dynamic range
A-weighted, AES17 filter, 2 Vrms ref
109
dB
V_n
Noise voltage
Slew rate
A-weighted, AES17 filter
7
uV
4.5
V/µS
GBW
Unity gain bandwidth
8
MHz
V_{incm_pos}
V_{incm_neg}
I_limit
Crosstalk – Line L-R & R-L
Positive common-mode input voltage
Negative common-mode input voltage
Current limit
Maximum capacitive load
10 kΩ load, V_O = 2 Vrms
PVDD = 3.3 V
-100
dB
+2.0
V
-3.0
V
60
mA
220
pF
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