PCD5032 datasheet(15/24 Pages) PHILIPS

15 / 24 page

1997 Apr 03

Philips Semiconductors

Product speciﬁcation

ADPCM CODEC for digital cordless

telephones

PCD5032

Notes

1. All outputs left open. IDD measured with all inputs connected to VSS, except: CLK and DCLK connected to 3.456 MHz;

RAS and TAS connected to 8 kHz. Istb measured with all inputs connected to VSS, except: TM+, TM− left open.

2. The reference voltage is available on VREF+ and VREF− and is measured with respect to VGA. The voltage outputs

are intended for electret microphone supply and can deliver 400

µA.

3. Digital inputs and outputs are CMOS-levels compatible. The outputs and inputs can sink or source 1 mA. Pull-down

resistors are present at pins RPI, TPI, TEST, RAD.

4. Any frequency between min. and max. is allowed for DCLK. The signals CLK and RAS/TAS must be

frequency-locked and will have a ratio of fCLK/fRAS = 432

5. All analog input/output voltages are measured differentially. The circuit is designed for use with an electret

microphone.

6. Frequency band is 300 Hz to 3400 Hz. Maximum load capacitance = 100 pF differentially, or 200 pF each pin.

7. Nominal signal level gives

−10 dBm0 on the PCM interface (G.711/G.712). Value given for TX gain setting 0 dB.

8. Nominal signal level gives 3.14 dBm0 on the PCM interface, with larger input signals the digital output will be

saturated. Value given for TX gain setting 0 dB.

9. Transmitter gain setting = 0 dB and input signal level = 40 mV (RMS) (will generate 0 dBm0 on PCM interface

according to G.711).

10. PCM signal level is 0 dBm0 and RX gain setting 0 dB. With a load of 300

Ω between RE+ and RE− the signal level

results in an output power of 1 mW. The maximum output current is 10 mA.

11. PCM signal level is +3.14 dBm0 and RX gain setting +4 dB. The maximum output current is 10 mA.

12. PCM signal level is 0 dBm0 (G.711).

13. For maximum output power the load resistance should equal the typical output impedance (specified at

ILOAD −20 mA). The absolute maximum value of output power given in Chapter 9 defines the minimum load

resistance.

Gv(step)

voltage gain, step size

−

THDTX

total harmonic distortion

(transmitted)

note 9

−−

−40

Receiver audio output

output impedance

note 6

−

−Ω

Vo(rms)

output signal level (RMS

value)

0 dBm0; note 10

−

550

−

3.14 dBm0; note 11

−

1250

−

Gv(min)

minimum voltage gain

−4

−3

−2dB

Gv(max)

maximum voltage gain

Gv(step)

voltage gain, step size

−

Gvol

volume control range

−36

−

0dB

Gvol(step)

volume step size

−

6.0

−

THDRX

total harmonic distortion

(received)

note 12

−−

−40

Ringer output; notes 5 and 13

output impedance

−

Ω

Gvol

volume control range

−29

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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